I only use it if I am doing big single note swellsI have a couple of presets with no reverb. The sound is really dry and in your face. I usually just use those for certain secions of songs when I want that sound. I don't use a ton of reverb but I think it adds depth to the sound and I like that.
That is another great point. There isn't a practical way to "un-reverb" an input, so it's smart to avoid adding to that mud. We do play some rooms that are acoustically neutral, and have very little natural reverb. In those cases I figure the FOH engineer has a better vantage point for adding reverb / ambience to the entire mix if they want to. I definitely don't want to give them a wet signal they can't work with.I don't use reverb at all. There is already reverb in the room/venue, adding more just makes it muddy.