One is currently in a competitive summer league, living with a host family and 3 other guys. Same league but ended up switching teams last minute as they needed to shuffle with regionals and inning counts played a factor.
In any event he is on a team with a mix of players. The biggest difference to me is the defense. At his mid major, anything on the infield is automatic. There are a lot more infield singles and errors. Especially when they go up against some of the more P5 heavy teams. Catchers have been a bit disappointing as well but I imagine there is going to be a bit of a learning curve seeing 20 new arms.