Dive Shops like the brands they sell, and divers like the brands they use. In truth, almost any reg from a name brand company will be just fine for a new diver.
You get a performance bump from a balanced first stage, and some from a balanced second stage.
Almost any modern reg perform just fine for recreational diving. In many cases, divers with top performing regs are taking a race car for a spin around the block and only driving 35mph.
Dive retailers try hard to make regulators confusing to new divers. It's hard to differentiate products that virtually all do the exact same thing in 1 of 2 ways. If the salesman says 'how much is your life worth' or some variation of that.....then it's time to start looking at other retailers.
I like the Zeagle Envoy or DSV, as well as the Atomic Z2. There are dozens of other regs out there that are perfectly fine as well. Your best bang for the buck, in most cases, will be in the low to middle range of any manufacturers lineup.