Tres Pelicanos also takes care of your gear overnight, and it was my impression that most of the Dive Ops recommended here on SB provide similar "concierge" service (but I could be wrong.) Tres Pelicanos doesn't offer steel tanks, but they do have some AL100s.
Personally I like that Dave, Christi, and others participate on SB. I don't think them as "lurking". I haven't dived with either of them, but I've never seen anything but helpful advice about diving in Coz from them. They don't seem to self-promote especially or badmouth other dive ops.