Product review (1 stars): Pointless if you have a sink or a bathtub
I bought this device when I moved into a small apartment with washer/dryer on another floor.  I used it a few times and it does the job OK, but it is no better than putting the clothes in the sink or the bathtub and swishing them around in there.  The suction cups can be a bit of a nuisance but of course you need them to keep the device from skating around as you spin it.  Keep in mind that it is difficult to wring the clothes well enough to keep them from dripping  when hung  so this is another potential source of annoyance.
It is smaller than a washer/dryer but still takes up a fair amount of space and it must be stored somewhere.
This is one of my less smart purchases.