Product review (4 stars): Great little washer for the cabin!
I bought the Wonderwash for doing laundry at my off grid cabin.  It washes clothes as advertised.  Half loads work best for me.  I take the clothes out after the wash cycle and wring out the soapy water rather than just draining the wash water and adding rinse water as stated in the directions.  I may be using too much laundry soap, but if I don't wring out the soapy water after a wash cycle, more than one rinse cycle is needed.  I setup the Wonderwash outside on a table.  I haven't noticed any leaks, but I do spill some water when I take the clothes out to wring them out.  Washing the clothes outside works for me.  And since I'm outside, spilling a little water isn't an issue, and the clothes line is right there.  It can't get any better than that!