I was one of the very first people signed to mythic (before they announced they were an agency, even). I have been with them since BEFORE their announced beginning.
For those that don't know, I was a financial planner for over a decade. I am a numbers guy.
At no point has mythic *ever* shorted me. Ever. In many cases they had secured contracts for significantly more than the going market rate on my behalf and they have gone out of their way to go above and beyond for me in certain circumstances that I don't believe any other agency would've.
It's never been less than extremely professional and I've never questioned whether I got paid my owed contracted value in full.
I can't speak to anyone else. Only myself. They've only done right by me for well over $150k worth of sponsorships over the last 4+ years.