Got me 3 System pipes, 2 Petes and 1 Sav. They don't really get smoked very often. I just don't like taking the extra 5sec to clean out the reservoir after i'm done.
Also dont look very good, or feel overly comfortable, they are USUALLY a pretty far bent pipe, which I am not the biggest fan of. Do they help with moisture levels, absolutely.
Are they worth what they charge for a new one? Not to me they aren't.