Just a quick follow-up...
Thanks to all for the advice/suggestions. We wet-tested the 05 Envoy last week and made the purchase! I liked the Dual Moto, and my wife was crazy about the recliner seat. It also gave us a chance to hear the SpaAudio feature. For us, the sound quality didn't justify the dealer's high price (an extra $2000!). Delivery is set for mid to late March, so now we just wait.
In the meantime, I'm reading about set up and water treatment. SpaGuard suggests that when you first take delivery, you fill the spa, super chlorinate, run it for a couple of hours, drain the spa, rinse down the shell, and finally refill. Is that necessary?
Also, we're going to try the EverFresh (or is it FreshWater?) silver ion treatment. Any opinions?
Thanks again for everyone's help!