So I got the Crystal Quest shower filter and countertop fluoride filter and I am very happy with both of them. The only problem is that I ordered the 6-stage fluoride filter and they sent me the regular fluoride filter, not a big deal I guess. I'm sure they would have replaced it for me, but I really wasn't too worried about it. As far as effectiveness goes, its hard for me to say since I have no way of testing the water, but it tasted good no problems. The shower filter makes the water very soft and comforting and there is no more chlorine smell. Overall very happy with the purchase.