Retreater, a serious question: do your players already play any other OSR or genuine Old School games?
If so, are they D&D mechanics? (OE, Holmes Basic, BX/BECMI/Cyclo, EG, OSE, DCC, S&W, AS&SOH, etc)
I have two players who started (like me) in the TSR AD&D era. I have another (quite vocal player who also happens to be my wife) who is adamant that OSR games aren't fun. She argues that characters tend to start much weaker than they are in modern systems & you are discouraged from fighting (which is the "fun" part for her, because she's a slayer who likes doing big damage).
I really long for the old school type of game. I was hoping that C&C - which sort of blends OSR and more modern play - would be a compromise. It seems like the only compromise is 5E - which is the system they want to play.
To me, I'm not interested in 5E for a multitude of reasons.
1) Bad track record. We've tried it multiple times and it's never lasted.
2) Players tend to keep falling into the same routines. (For example, one player is always a rogue that does the same thing in every campaign.)
3) Players keep mixing up bonus actions and standard actions - and "farming" for bonus actions
4) I've been running it nonstop since 2014 and would love a break from the system.
5) I've run basically all the official adventure content that is well reviewed and don't have time to create my own adventures.
6) They don't try anything creative - it's just the actions and abilities on their sheets.
7) We have difficulty keeping a full party of players - so I have to run an NPC healbot to maintain balance. (An OSR system with henchmen would be an easier solution.)
8) I miss the monster design from older editions that had legends, lore, and story baked in. More modern games present stat blocks, which don't really inspire me.
Sorry for the off topic rant. I just wanted to explain why I want to run a system like C&C.