Product review (5 stars): Simple to mount, works great!
We bought this for our under-sink filtration system.  Simple to mount, works great!

Update 5/15/16:  We just replaced the original filter cartridge with a new one.  We have been very satisfied with the water quality and (lack of) taste.  We live in Florida, and our city water is notoriously "treated" and doesn't taste good. The cartridge didn't last six months before the water started to taste "unfiltered". The flow rate didn't change, as other reviewers had stated. It is only my husband and me (and the dog), so I'm kind of suprised it didn't last longer, but overall we are satisfied with the quality of the product.