I purchased one of these about a year ago - here is my review:
Booster Bath Review
Thinking back the only thing I did not care of with this tub is the legs - in order to give stability these stick out at an angle and take up quite a bit of room - also making it difficult to angle into our corner shower. However - this was wayyyyy better than a tub on the ground or the floor of the shower.
This fall my DH turned our mud room into a grooming room by adding an awesome farm house sink, counters and cabinets - so much easier on my back!