Hi,
We just rebuilt our deck and added a spa platform. Long story short we bought a Caldera C-45 for $6995 from our local dealer Galati Pools in Newburgh, NY We found the Caldera to have much better hydrotherapy and jet arrangement than the Marquis at a lower price. Very surprised that Marquis won Consumer Reports best buy OR perhaps the demo unit we wet tested was defective. You MUST wet test the tubs before buying. I am 6'4" and did not know until the wet test just how important the tub depth was. Caldera is 38", Marquis was 34". Most tubs loungers are a waste but Caldera has a deeper and better contoured lounger than the others we saw and the heel holds make a big difference as to whether you will float or not.
I got caught up in comparing 'gallon per minute' flow rates through the jets. Marquis makes a big deal about the 40 GPM rate on their HK40 jet. I found the Caldera Geneva/C-45 to have better hydrotherapy than the Marquis. Watkins refused to provide me with individual jet flow rates but the dual 2.5 HP pumps do provide incredible power. The Marquis seat controls appear to be co-dependant upon one another, i.e., you must get the selector dial in the correct position at more than one seat position to control your own jet combination at your seat wherein the Caldera the controls were more logical, you control your own seat/jet combination at your own seat more easily.
We saved money since we didn't need exterior lighting, built in music or the air bubble jets so the C-45 was a perfect choice for us over the more expensive Geneva. We can plug in a light and iPod boombox to complete the scenario.
Our tub gets installed in 2 weeks. Will let you know how it goes.
Steve