I hate sweeping. Not really an expansive part, I find it a bit relaxing. It's "shovel, don't try to leave a few leftovers." Then my little robot appeared. THAT IS SO COOL! Yes, it's a base model, not smart or trainable, it's actually a bit dumb. But I like it and it works! A warning, that's like protecting your home from children before you let it go. He sucks up wires and loose objects and doesn't like to let go of them. Clear the area and release little Robi. I actually watch mine to make sure it doesn't get stuck and save it from making a wrong choice, but you can leave it unattended. It will stop and beep if it gets stuck. The quality of the sweep is not bad, the randomness of the sweep can still be. But the best part is that after sweeping your room, you can just open the lid, pull out the little box and toss it in the bin. No scoops, no leftovers. Fully charged in a few hours and then can work for weeks without charging. Does what it's supposed to do, I think it's good value for money, FOUR STARS!