Or for just starting out - Edge. I can put you in a complete set up -Sealed diaphragm 1st stage, adjustable second, octo of equal quality to the primary, all hoses, and a choice of gauge setups for more than $100 less than the Scubapro you picked that is sold at Leisure Pro for 575 and as new diver you would not be able to tell the difference in performance. And again if at some time you wanted to I'll sell you the service kits that will allow ANY competent tech to service it.