So is there consensus that $60 for 2 hours with a not-that-established coach is kind of high?
Nope. For a few reasons.
1. Not-that-established as what? A coach, or a performer? And what is established? On a house team at a theater? Some coaches are great and don't perform much; some performers are great performers but can't coach. Some performers are great, and can coach, but aren't 'established' or famous.
2. It's all what the market will bear. if you need a coach and he's available, it may not matter if his rate is the same as someone better if that better person isn't available.
Pick a coach based on what other people tell you. If nobody knows if this person can coach, it's up to the coach to do something to prove they can - offer free coaching, for example. Or, pick a coach based on how well they perform...but that's no garantee they can coach.
I coach, and know I was once passed over with my now 9+ years of improv experience for someone who's been doing it for 2-3 years strictly because they got on a house team at a theater. "If they are on a house team they *must* be good!" I'm not even saying they aren't. I'm saying you don't really know until you try them.
Look -pay the $60 once, and if the coach isn't worth it, consider it a $40 coaching fee and $20 "not wasting anymore of my time" fee and don't use them anymore.