iRobot Braava 390t, robot mop, for multiple rooms and large spaces, silent.

Our previous floor washing robot, a Braava 240, had developed a fault which rendered it unworkable. We'd had it for 2 -3 years and we could, not now, go back to hand washing floors. But, did we replace it with another 240 series or go for the 390? Both were roughly the same price.Some reviews compared both and deemed them to be more or less equal in cleaning ability. Interestingly, the 390 was an older design than the 240. In the end we bought the 390 - so here is my "comparison" after having the 390 for about 2 weeks - we only use it to wash floors, not sweep them, so this review only covers that.Review of 390 vs 240 :Both do the job. The 390 has a different navigation logic, which to my mind, works better and covers the floor area quicker - the 240 sometimes gets a little lost and thus re-cleans parts of the floor many times.The 240, though, has a scrubbing action which shifts sticky/dirty spots better - the 390 just wipes. As an adjunct to that last point, I normally would give major spots on the floor a quick rub with a cloth before using either machine, so this is not an issue for me, but when in a hurry I occasionally skip the pre-wipe and the 240 is more forgiving than the 390.The 240 has a fairly large internal water tank and a spray nozzle, the 390 has a small tank as part of the brush head which holds very little and trickle feeds into the cleaning pad at a constant rate. I was very worried when I saw this feature on the 390 and worried about running out of water before finishing. However, it comfortably lasts when cleaning a 200 sq.ft. "L" shaped room. An "advantage" perhaps is that I now mix a small amount of a non-soapy floor cleaner into the water and use this solution in the 390 trickle feed (technically against manufacturers advice) which simplifies the floor washing as compared to the 240 where (because of the spray nozzle) i was afraid to use anything but water and had to resort to sprinkling drops of cleaning solution around the floor before washing by the 240.The 390 is designed to work with reusable microfibre cloths, the 240 is designed to use single-use pads which have been impregnated with a cleaning solution. Due to the ongoing cost of the 240's single use pads, we had resorted to using the manufacturers reusable pads (purchased separately) - hence the need to spray cleaning fluid on the floor in advance of using the 240.Final note :The 390 is slightly bigger than the 240 (it's still small) and a little heavier. It feels more sturdy and better constructed. It's navigation system is "intelligent" in that it can find out where exactly it is in relation to the beacon it uses for navigation, whereas the 240 relies on absolute positioning based on it's known movements (so when a wheel slips by even a fraction it slowly but surely loses it's knowledge of the shape of the room and begins to overclean some parts of the room). I was disappointed to only get 2-3 years from the 240, and I hope the perceived extra sturdiness of the 390 will result in a longer lifespan. But of one thing I am sure - when it breaks, I will be replacing with another similar device - once you've lived for a year or two of having a robot clean your floors, you won't go back voluntarily.

I like this little gadget it keeps my tiled floor clean in the kitchen. I deep cleaned the tiles first with my steam cleaner and now use the robot to mop every 4-5 days.I add a tiny amount of floral disinfectant and it leaves the room smelling lovely . I bought extra microfibre cloth’s and tend to change them halfway through the cleaning process. Please note it does not do a deep clean

I still wish the AI was better with these robots but this one is good for hardwood floors. It's smart enough to not get stuck in most area although it doesn't have a sense of the z axis so tends to get stuck under things it's too small for.I wish it would go on longer and be willing to explore other rooms.It got the job done...for about 2 months, then the rubber wheels started to fall off and get stuck in the undercarriage. This started to wear it down (and me as putting the wheels back on sometime required to unscrew the bottom). I put in a trouble call. They were quick to respond, asking for photos, then videos. Then, even though I put the trouble call in on the UK website, making an account and giving them my UK address where I had purchased it...after a month they came back and gave me the webaddress of the UK IRobot. I logged in and it asked to register again which involves putting in the stock #. Then another trouble call where even though you have registered your device you are required to enter the stock number again (and date of purchase).so, 4 months later, I have a broken vacumn with no resolution. I really wanted it to work but there are some major engineering faults that make it unsuitable for long time use.

This is a superb mopping robot. It doesn't have any suction, so you need to brush or vacuum your floor first, and the water tank is tiny (probably 100ml), but it does mop our large kitchen and dining room before it runs out. I do add some cleaning solution (not bleach or ammonia etc, but normal mild cleaning solution is ideal): about 5ml in the tank is all that's required.Place the room sensor somewhere reasonably central, put the mopbot in the corner of your room, and it will go on its merry way. When it's finished, it will go back to the starting point and turn off.One word of warning - it is completely silent. It's easy to forget it's there and step on it, or trip up when you realise it's about.It's not a miracle worker - it won't lift really stubborn dirt, nor does it scrub hard. But if you use it every 1-2 days it keeps the floor spick-and-span. You probably will need to order a spare pack of mop cloths as they need to be thrown in the washing machine then dried before each use, so have some spares. Incidently, the cloths simply velcro onto the base of either the dry head or the wet head, which then attaches to the mop using magnets. I think you can also get 'swiffer' pads, but not tried these - not sure if they will remain damp long enough, particularly if you have a larger room.It's our second bot - goes with its larger Roomba which we've moved elsewhere in the house. Really pleased with them both.

After some time of light use I have unfortunately decided to update my review. I have a room a and have always been impressed by the ease of cleaning. The braava however, is disappointing. The wheels become stuck with dirt and I got the 5 beeps error right after starting. Here is no easy way to clean the wheels as you cannot detach them easily. I have tried opening up the case, but you have to be very careful as wires are attached. Basically it is not a well thought through product, and very expensive for the amount of cleaning it offered. The function of the separate north star is also a pain compared to the self navigation of the roomba.