I actually love doing decline, I usually only do 1 or 2 sets with really light weight just 1 plate each side and rep them out 20-25 reps, alot of people either hate them or love them, so if you feel them you should do them, most gyms from my experience the decline angle isn't that great I always have to put something extra under the bench like a wooden block, but do what you feel, not what other people tell you works..