I'd really appreciate anyone's experience with Aquasan undersink drinking water filters -- or some of the other choices out there. I'm looking for something that cleans the water (not RO) and tastes as fresh and lively as bottled waters, which I understand have extras added to give that taste. We've used a Culligan RO for years and it provides good water but flat tasting, takes a lot of space, and I understand RO wastes a lot. Also I'm intrigued by the claims of shower filters to de-chlorinate water that exposes us to volatile chlorine gases. Has anyone found a noticable improvement in health and skin feel with shower filter?