Check faucetdirect.com for reviews, as well as Amazon and the big box stores. In general, you get what you pay for.

Honestly think about how often you will use this most of my clients are taking them out first they are a huge waste of water and secondly a waste of power and the novelty for most people wears of after about a month.

I have chronic pain and use mine ALL THE TIME. My favorite brand is MAAX ***BY FAR***.

1) They have a lot of jets, AND the pump is powerful! It's the closest to a high-end hot tub that you can get in a bath.

2) They're cheap. Like, this-can't-be-for-real cheap.

3) The contouring for head/neck/shoulders is PERFECT. We have a Kohler tub. NO COMPARISON.

4) The thickness and finish of the tub itself compares favorably to Kohler.

5) It comes with all the bells and whistles. I got the heat pump--you can also get LEDs, etc.

6) SELF-DRAINING. People who hate their whirlpool tubs usually hate them because they get gross and scummy if not used all the time. MAAX tubs are made so that all the tubing slopes to gravity-drain at the end of every bath.

7) Relatively quiet. Unless you remote your pump, it's going to be at least a little loud, but it's quiet for what it is.

If I were going to buy one I would also choose Maax I love their tubs jetted or non.

Have you looked at the Kohler bubble massage tubs? Only air goes through the tubes, so you don't have the mold issues that you have with the jetted tubs.