I wet tested the piper today (woburn MA) & here is my observation. Was very impressed w/ the overall look of the tub, the seats were comfortable (i'm 6'4") not too squeezed in. I really liked how easy it was to ajust, (no diverter valves),I just wished it had more power. 5 switchless 3hp motors, where did the horses go? I did like the fact that all the seats had a large number of jets (the 4 main seats). the digital lighting was also very cool. I wished it had a waterfall, (soothing). cabinet was also very nice (not to plastic looking). I was quoted a price of 11,100 for the tub, coverlift, ozone, up-graded lighting, steps, chem, & delivery. Seems a little pricey, also footjets were lame at best. While I was still wet I decided to travel to my sundance dealer in portsmouth NH. I hopped in to the optima & immediately felt that I was squeezed in between the seat & the foot dome Knee to chin syndrome (it's tough being tall) but I noticed how incredibly powerful the jets were. I feel I would rather have more power than the opposite ( as long as I have the ability to lessen the pressure) The 2 main seats (right & left side of the waterfall ) had great hydro therapy, but felt the other 2 seats needed more jets. the diverter valves were very quiet but a bit confusing. In time I'm sure i'd figure them out. Overall the Quality looked very good The price was very fair at $9,000 w/same as above options.This is my favorite so far. I thought i heard angels humming, then I saw the maxxus (love at first site!) it did not have any water in it so I had to schedule a wet test for tues. the maxxus appears to be built for taller people, lots of leg room, deep seats, an extra pump, 55 hydro jets 2 water falls. This tub is screaming my name (I hope) and the loaded price (no stereo) is cheaper than the piper. does any body own one of these ? I would like an opinion.