There are more iRobot Roomba models than there are lights on Broadway. Or something like that. Anyway, the company has been busy churning out bots since the first Roomba caught on big with the public back in 2002 and the have a model for every price point -- or cleaning need. The iRobot Roomba 630 is a relatively inexpensive model by Roomba standards, but Amazon reviews for it are strong. It lacks the XLife Extended Life Battery of the Roomba 880, which is currently in the same price range, so you might want to check that out too. It also lacks the scheduling ability of almost every other Roomba model, so if being able to tell your vacuum in advance when you want it to go into action is important to you, it might be better to look elsewhere.
It does, however, allow you to set up a virtual wall to delimit the robovac's cleaning area, preventing it from wandering off-track and invading an occupied bathroom. The "walls" are tiny boxes that produce an infrared beam that's invisible to the homeowner but quite visible to the bot. It has cliff detection to prevent it from tumbling down the stairs, whether you have a virtual wall set up or not. Like all Roombas (and pretty much all robovacs) it has a low slung form that will slide under furniture to clean where even cleaning personnel often fail to go. It uses iRobot's AeroVac system to pick up as much dirt and pet hair as possible. The side brushes pull dirt off the wall edges to put it in the vacuum's range and the unit's counter-rotating brushes do a broom-and-dustpan act to pick up floor debris. And acoustic sensors actually detect particularly dirty areas so that the vac can concentrate on them until they're clean.
All in all, the 630 is a pretty impressive unit, but with the falling price of the 880 it may have outlasted its usefulness. According to the manufacturer it will require some maintenance, as opposed to the virtually maintenance-free 880. And there are quite a few other Roomba models out there to look at. Also check out the Dyson 360 Eye and the Neato XV-21.
The iRobot uses a zig zag type manuever to ensure all 1200 sq ft is perfectly clean.
Please don't buy it! Only last three months. Warranty only covers manufacturing fault that means no
The unit comes with one sensor that blocks the vacuum from wandering into rooms that I did not want it to clean.
This product performs well as far as removing dirt. It only work for 60 to 65 minutes before it has to be recharged.
It's easy to use, picks up as much as my vacuum cleaner and as far as I am concerned is a must have when you have pets.