But for the normal users - to be honest - most topics are too heavy on complex math. And there's no way to avoid it if you want results.
Most advanced radio stuff much more complicate than checking out a repo from GitHub and compiling it.
That being said last I used it extensively was v3 so maybe v4 is better. Did they get rid of thread per block and allow you to have a single thread service a sub signal chain? I remember that the number of context switches between threads, and balancing latency vs buffer sizes was a pain in the rear.
It's great fun for doing signal analysis, but I'd never want to try and implement a full-duplex communication system in production with it.