I have a Dyson upright. It lost its suction... It was out of warranty, Dyson recommended buying new technology instead of repairing it. I wanted a robotic vacuum, but found so many negative reviews & they were so expensive. So I bought a Dyson canister style, thinking it would be lighter and less exhausting to use. I was still not happy, they just are not worth the money. I was spending so much time and effort to clean the floors. Really not impressed with Dyson. So, I continued to wish for a robotic vacuum. I asked for referrals, I searched the Internet for deals, I read so many reviews. I stumbled across Bobi in a top 10 list. It was not number 1, that was Neato (more than 2x the price). But Bobi was #4. The Best Buy for the money. This is the new model. The one with the block. This keeps it out of where you don't want it to go. That is included in the price with this Bobi. You also get a remote control. Yes, it's a learning curve to program your vacuum cleaner... but I'm so much happier to sit in a chair watching the cat bat at Bobi while she does the sweeping! Bobi does a great job, easily as good at sweeping both carpet and tile as either of my Dyson vacuums ever did. I had to exert zero effort, just empty the dust bucket. Bobi and I have some work to do teaching her to maneuver around the dining room table with 6 chairs, but for now I move the chairs out of the room until she is finished. And don't waste your money on the additional warranty, this one has a 2 year manufacturers warranty included! I recommend this model, and the Great Offer Stock price is excellent!