Well funny you should bring this up. Just watched a cool documentary called "Searching for Sugarman" Story about a musician who recorded a couple of albums in the USA in 1971-2 that never sold. He became a big hit in South Africa.
Anyhow my son inlaw downloaded the soundtrack which was the 1970's recordings. Right away I said, "good lord did they every use WAY to much reverb in those days". For me it totally ruined the music, I could't listen to it. We then found a "Alive in Australia" a 1979 recording and what a difference,,, same songs, "better production". ( re: way less reverb and cheesy strings)
My teaching has been turn the reverb up until you notice it, then back off a tad.
Certain music styles do lend themselves to more efxs. So that's also one of the factors.
Kinda like,, slow songs more, fast songs less ??
But if your buddies are telling you they think there's to much, then they're probably like me and would rather not "hear" reverb in a mix.