Product review (3 stars): Great concept ... but leaks.
From the reviews I watched, it looked like a great product. I ended up caving to my curiosity and purchasing the Wonderwash.

First impressions, the base is extremely flismy / flexible. I wish they made it with higher quality plastics. I am not sure if it will be prone to cracking / snapping in the future, but the flexing is annoying if only because the tank wobbles while spinning.

Unfortunately, once I filled it up with water, the bottom started leaking. Given that it "has a patented pressure system that forces detergent into the fabric at high speed for a fast, efficient, economic and very easy wash", if it leaks, it means the pressure isn't being maintained.  I ignored it and proceeded to do a trial wash. The only complain I have then is that it is wobbly. Water was being flung into my face due to the leak, but I am assuming that it is a defect and it does not normally leak (and thus, water will not be flung into your face).

If what I received wasn't defective, I would likely give this 4 stars - pending durability assessments.

I will be contacting Laundry Alternative to see what can be done, and I will update this review accordingly.

Update 1:

Received a replacement tub. I haven't gotten a chance to do a wash yet, but I did fill it with some water to check for leaks - no leaks yet, yay!

Update 2:

The tub seems to work fine now. Did a load of wash and worked out as intended. My only concern is that the metal (the rod that holds the handle) will eventually corrode due to friction and exposure to water.

I also have another quality issue. The metal rings (in the base - used to support the actual tub) are flaking. I noticed little gray flakes scattered on the surface I was using to do the washing. Upon closer inspection, it was coming off the metal rings. Only time can tell what issues this will cause in the future.

I am fairly in between whether or not I would recommend this product. Quality is up in the air, but it definitely works as long as it holds up. If you live in an apartment and pay per load in the basement/in the laundromat, this will pay itself off in about 30 loads. Question is, would it last 30 loads (30 loads in laundromat terms is really like 60-80 wonderwash terms due to difference in size).