Our new Big Green Machine (BGM) works better than expected. It cleans very well. We have four cats and of course they make their messes on the carpet rather than on the hard floors, so we spend a lot of time keeping the carpet clean. Both the supply water and the dirty water containers are bigger than what we were used to (the new BGM replaced an old Hoover Dual V cleaner) and the scrubbing action makes for a clean carpet with less time cleaning it. The only con is that there is not a way to rinse the carpet unless we go over it a second time without shampoo, and only clean water.