Welcome to our forum.
Welcome to the forum. It doesn't have to be hard, take your time and remember you have the upper hand.
I am a Master Spas dealer, and I have to say that they are an incredible company to do business with and they make a great product. If you are getting an LSX850 for that price, I would pull the trigger. You will love that hot tub! If you want an independant opinion, try spasearch.org. They are the only independant company that rates hot tubs objectively, and not by the size of their advertising budget.
I bought the clearwater tradition signature. I'm getting it installed on tuesday thanks for your comments and I'm sure I will have more questions once I get the tub installed.