Using a pro is one route but the downside is that you have to hire him every time you make a system change that affects acoustical conditions. In addition, he is on the clock and the avid user can (and, probably, will) apply more continuous effort in optimizing the performance. Admittedly, that will demand learning, attention and effort but, imho, the results will, ultimately, be more satisfying.
There is, also, the issue of choosing a "pro." Not all who profess to be, are.