We have the exact tub you are discussing. Our tub is equipped with the mini neckblaster, gyrossage, alee V8 and the clusterbust jet packs. I personally find the jet pressure more then enough but my wife will turn off some of the jets in the other seat. If you are concerned about jet pressure, choose some of the jetpacks that you can turn the jets on or off and then pressure is not an issue.
Our tub is 3 1/2 years old and we have had no problems to speak of. We still use it 2 or 3 times a week and really enjoy it