I recently got my first set of replacement filters. The replacement process is very easy. I didn't miss one day of the healthy Aquasana water I now would not want to be without.
Bought first one for previous house. Had professionally installed but easy for me to change filters. We have moved and I had an identical unit installed.
While I could talk about the joys of drinking water with absolutely no flavor and the fact that tea and coffee have no off-flavors, the really important facts are the lab results for the filters. We get exceptional water purity form a very simple to install system that is easy to maintain at a reasonable cost. This system is of real benefit to my family.
I purchase this system in December after I moved into this house. I was familiar with this system because I had left one in my condo I had sold so I made sure to order one for my new place after I moved in. With Aquasana I know I'm drinking good water.