At first he seems completely stupid and he bangs, returns several places and seems to forget other ... in fact it is fun to watch the first two minutes, then very quickly annoying! it looks like it's never going to happen! the whole is to go away, leaving the handle and when you come back 5 minutes after actually, he just sucked.
I hesitated with another robot vacuum cleaner that maps the pieces, but even if roomba does not know how, it's still the most effective and that is all that is expected of him ...
With that conventional vacuum cleaner is rarely output, primarily for baseboards and places too narrow for roomba, if it became completely superfluous. Roomba goes under the bed .... when I think of yoga postures that I had to accomplish to do it, one eye, crooked and moaning! he sneaks under any furniture of more than 10cm height!
Basically since I am spending more and all the upright vacuum is cleaner than before ... effortlessly.
It's a little less noise than a conventional upright vacuum is breaking even, some say that we add the sound of a remote controlled car. The maintenance is very simple, short, and few binding compared to the benefits. I submitted extreme situations and it's emerged victorious from most, really great robot!