I beat Quake last year; I thought it was fun.  The vores and blue slime can get forgeted though.  Also the ending is very anti-climactic.
If you are gonna play it, I'd recommend using 
Quakespasm because the Steam port is garbage.
Speaking of garbage ports, if you want to play Doom 1 and 2 you should use ZDoom or GZDoom.  Though you'll want to disable the ability to jump and look up and down if you want the authentic Doom experience.