Pretty disappointed in iRobot today. I've had a Roomba 780 for awhile and love it. Had been eyeing a Scooba for some time, but it's price put me off. Now that it appears to be discontinued, I was looking at their Braava line. I purchased a Braava Jet, as I have a small home and the largest floored space is only about 100 square foot.
While the Braava does an admirable job on the smaller bathroom area, it has problems with the kitchen. My kitchen is approximately 100 square feet (not taking into account the presence of an island). The Braava Jet would clean 1/2 of the floor space fine, but then appear to be out of water. It would still pause, and make the sound indicating it was attempting to spray, but no liquid would be dispensed. Long before reaching the end of the cycle, it would leave no dampness at all, and fail to clean the floors.
This seemed odd, so I called tech support. After several questions that amounted to "Did you do something stupid?", and several holds, I was told that the issue was that I have laminate flooring and that's why the BJ is running out of water. This is bullshit. While I understand that the marketing material claims the BJ is only compatible with Hard Floors, tile, and stone, this is no doubt because excess moisture can damage laminate. I get that iRobot doesn't want the liability of damaging someone's laminate so that's fine. However, I've run this robot on tile, and it sprays the exact same amount of water at the exact same interval, meaning it would run out of liquid at the same point regardless of floor type.
It's also worth noting, that although the website says that in wet mopping mode, the robot can handle "up to 200 square feet", the Braava Jet instructional videos on YouTube only claim "up too 150 square feet".
In short, I cannot recommend the Braava Jet unless you have only the smallest of kitchens and bathrooms. I'm currently debating whether to send this one back, but have one other thing to try first. I'm told that using the iRobot Home smartphone app, I can vary the amount of water dispensed. I'm going to turn the amount down and see if that can extend it's cleaning coverage. If not It might be time to go back to a traditional cleaning method.