if I could ask you for that PMDG 737, I have 700 version and I’m very satisfied, completelly with functionality, save/load system, FPL and feeling. It is very good addon, worth money. I can say, I’m very hard core simmer and I’m satisfied with functionality. It can be for first hard to learn but all can be solved like Airline pilot learning life 
Simply, if you want Airliner, it is very important decision because of more factors like complexity, functionality and HW performance. very important here - SUPPORT because with PMDG you can be sure for very good support with possible updates, fixes. Really, I’m not that one for any CRJ, it is clear also from users experience. Here are many cheap addons that are not good, waste of money. Your choice…
I have relatively old and not high performance HW and in HD sim and PMDG working n.1