I spend more time removing this vacuum from the spots where it 'freezes/fails'. At least 5 times per cycle. And these are common areas, like in the corner or under the bed where there's a bedpost. My Roomba has never shut down in these areas. This vacuum cleaner picks up dust and light dirt. I give it one star because we buy these vacuums for convenience. Set a timer and come home with a clean floor. It's impractical to find a MIA vacuum and then babysit it for up to 90 minutes, moving it 4-5 times, sometimes under a bed or bookshelf. My Rollibot is no longer working today (06/08/2018). Bought 7/2016. It was never cleaned well and now I learn that the warranty is only 1 year. I also had to replace the battery after about a year, which wasn't exactly cheap! My advice, avoid the product.
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