They are actually a pretty decent vacuum.  My biggest criticism is that there is a lot of handle weight, the machine feels very heavy and fatigues my wrist.  The bagless capture system "does clog, and does lose suction" if you don't keep that little foam filter washed almost every use. 

The machine is relatively quiet, and appears to clean pretty well.  Grooms the carpet fairly well.  Kind of leaves corn rows instead of continuous grooming tracks.    It does have a nice long cord so I can do the entire main floor without re-plugging. 

The dirt container hinge broke somehow and now the door just drops off instead of swinging open.  I usually take it out tot he compost bin to empty so not too messy.