main issue is it has low voltage power so suction, well, sucks... only not the way its supposed to. only has 8 oz tank, only runs for 20 mins on max charge (4.5 hours), is clunky at 4.5 pounds, the formula is expensive and only so-so. it sprays, you scrub, and it sucks up pooled surface liquid only, nothing deep... dont buy. learn from my mistake and get something with some HP suction... for cheaper!