Product review (2 stars): Not for everyone
This machine could be great in the right situation, but just to do a small load in the home is a little too tedious for me.  In a pinch, or on a camping trip, or when the power is out...this machine could definitely be a life saver.  It can get the job done.  But as for saving water...well it takes so much rinsing to get the soap out of the clothes with my particular brand of soap (ALL liquid), that I use as much water as a full sized single load in my big washer.  And the plastic frame is pretty rickety.  My son does love to spin it, but if he spins it too fast, the clothes just wad up in a ball and do not get enough agitation to clean effectively.  But I have found if you toss in 1 or 2 of those dryer balls (ie Mr. Steamy), that it helps separate and agitate the clothes when you are washing.  I am still working on finding the right balance of soap and water and hopefully that will cut down on my rinsing so much!!!  I originally bought this when my son was playing a lot of baseball and I'd have to wash his uniform every single night and didn't want to run a big full load in the big washer.  From start to finish, it took me about a half hour to wash, rinse, and wring out his uniform.  A little more if I had to pre-treat any big dirt or grass stains.  But next time we go camping...this is DEFINITELY coming with!!!