it deserves a 5 star rating because it cleans !!! it is given for less than 30m² but if you top up water + (included) it will go well beyond (more than 100m² with me) put the road, and go about your favorite occupations then it only remains clean (5mins) and put it in charge until the next use ... Anyway, I bought this because I have children and cats !!! I could not do without me !!! Finally it really takes away any dust under furniture and beds, provided they can pass through (height) So saving time, thorough cleaning, large cleaning surface, disassembly and reassembly of simplicity, that request Moreover !!!!