Bests & Worsts Reviews from Amazon

I purchased the 614 because I do not need a remote control, scheduling capability or lighthouse. This is my first roomba and I love it. I have run it every day since I got it. At first it appeared to follow a random path but the manual says it seeks out the dirtiest places first and I can believe it. It runs for 60-70 minutes on one charge and returns to the dock. Every time I run it the dust bin has dirt and fuzz in it. It is very easy to empty the bin. The cliff sensor really works so it doesn’t fall down the stairs. It takes about 3 hrs to get s full charge. So I block off rooms and shut doors and do a room at a time. We have entryway-living room-kitchen-bathroom-2 bedrooms on the main floor and this model does inicely when I do the bedrooms and bath separately. It does indeed go under furniture that is 3-1/2 inches or more off the ground. It does corners nicely too. I was skeptical about a round device getting in corners but the long brush things do the trick. Suction seems adequate since the bin always has stuff in it when it returns to the dock. I am a big fan and my husband who thought this was a joke is also a convert now. A bonus is that it entertains the dog for an hour when I run it.