Since my first post I have learned a wealth of information and have been warned by many members about the two spas I was considering a Cal Spa and a Master Spa. I want a great therepy tub that is deep. Since that post I have added two other brands of spas to my wet test roster, the Artesian, not sure of model yet. Like the Platinum series models, such as Piper Glen, Dove Canyon or Dimension one models Lotus Bay, Chairman II and Venture Bay. Can anyone offer any information on these spa's?ie. What to expect to pay? Are these brands quality and warranty superior to others? Any other information will be great.