Product review (3 stars): Check the size before you buy....
On the whole, the Wonderwasher worked relatively smoothly. The assembly was easy, and things like the lid and drain tube were simple to use. The cranking mechanism was very smooth and turned easily, once you got used to the physics of it (how the weight would shift when it turned, etc). My problem, however, was size.

The Wonderwasher is relatively large and bulky, does not break down smaller for storage, and thus takes up a lot of room in a small space. I unfortunately ordered it before I picked up my RV trailer (28 foot with no slide outs), and never planned on the size or space I had available.  I could not use the washer in my shower or by either sinks (bathroom or kitchen) as the space was too small. The only place I could use the washer was the floor in front of my kitchen. However, my flooring is textured, so the suction cups could not stick to it, and as I found out, the suction cups REALLY need to stick to the floor when using this machine. The plastic frame really twisted and bent while I cranked the handle since the frame was not secured to the floor, and I wondered how long the frame would last like this. When I finished the "wash" I'd have to pick the whole thing up, place it on the kitchen counter to let it drain, then back down on the floor, refill to rinse, crank, etc. I've used it only twice in the past 6 months of my RV life, and I am now going to purchase the Scrubba wash bag to replace it.

Also, the times I did use the Wonderwasher, I followed the instructions provided, but my clothes did not come out as clean as I would like. In fact I ended up rewashing them at the laundromat. I could have experimented with maybe longer cranking time, or more detergent, maybe hotter water, but given my issues with the frame, I did not feel comfortable trying it out.

The machine has great potential, and obviously from the other reviews it works great in other situations. I'd recommend checking out the measurements if your living space is at a premium, and ensure that wherever you're going to use it, that you have a flat, smooth surface that suction cups can stick to.