Thank you for all the comments, we're very happy!
OK to answer some questions..
We do like the tri jet very much! The only thing I'd do differently on the spa is put the seats down about 3" more.
We did not seal our travertine. Perhaps we will later but in speaking to several masons, all said it's not needed with the amount of salt in a residential pool.
Our sun shelf is roughly 4" deep, perhaps 5". Works great for us and our Shepherd/lab mix loves it. The bubblers are turned down. I have a 2hp pump for the bubblers and fountain in spa. I can adjust the flow and we have it up about halfway. We can get them about 14" above the water line if we choose.