My band has used them for quite some time now, personally at first I didn't care for them at all. As time has gone on tho I grown to like them a lot. We always still have a backline for a show, depending on the FOH my rig is a stage monitor or provides the bass. We just use an inexpensive Shure set up, it's been fine, with very little to complain about. It's helped us become way tighter and really hear what's going on, it helps a lot at rehearsal too. Side benifits include not losing your hearing when your spot on stage is right next to the drummer and those zingy cymbals.