Lightweight robot, sets off at a fine lick of speed. A bit more suction would help it a lot, I can't see any visible lasers - it bangs into walls like they all do - & the lid clips are a bit stiff (for now, anyway - I expect that'll end up as "not loose" so - good.) Charge is from supplied USB lead.
The English parts of the instruction leaflet are comprehensible (& Google will do the rest if you want!), I had no trouble getting it in use.