Thanks all for your advice!
Just an update -
So after wet testing HotSprings, Sundance, and Bullfrog, we are pretty hot on the Bullfrog. We are going to another Bullfrog store to try different jetpacks and see if they have a better price and will try a Jacuzzi tub while we're there. We struck Caldera off the list after learning I really like the raised foot dome.