Like apparently a lot of users, I come from a technical background. I've worked for software vendors for over 30 years in roles including product management, development management, and sales. And I do find JRiver both wonderful and exasperating. I have two suggestions:
1) I have a pretty complex setup. I have three windows boxes and two Raspberry Pis. I use Gizmo on both an android phone and an android tablet. Every once in awhile things just don't work ... Gizmo stalls out, servers disappear... It would be really great if MC had some internal speed/quality/connection check/wizard that could help diagnose bottlenecks. I'd love that.
2) I've written in BASIC, C++, FORTRAN, Pascal, and even assembly. But it's hard to figure out how to use expressions on MC. It looks powerful but I don't know how to start. A short tutorial, something as simple as a "hello world" bit of code, including how you write it, where you put it, and where you invoke it would be great.