Product review (4 stars): I love using my Panda
I love using my Panda, and it's still washing strong; however, the plastic tube that comes with the unit is not quality.  It stopped sticking to the sink within 30 days.  Additionally, you MUST use wash bags with this unit; the agitator is far too strong to risk just washing your clothes without this protection.  I recommend the ones from the Container Store; I've noticed that they last longer than the ones from Bed, Bath, and Beyond.  You will need to purchase the best ones you can find; the Panda ate the cheap ones from Wallyworld within three washes.

Gets my clothes cleaner than any conventional washer, but it's labor-intensive, and you MUST use the washbags.  Mine lives in the bathroom.
I recommend this product to those who can't have a washer, or don't have the space for one.  I use my Panda twice a week, and I stay mostly caught up on clothing.  I end up doing a load or two in a coin washer about every two months or so.  I consider that a major improvement.