I converted from an Aquasana counter top model to under the counter model and couldn't be happier. For it's level of effectiveness, it is of good value.
Pros: Clean taste, Easy to install, Long lasting filter
I have two,of these systems. One for drinking water, making coffee, cooking. But the best use for this is in my home brewing water. I bought the second one to mount directly to my brew stand. I haven't needed to change the filters after over 30 brews. Wouldn't brew without it.
Pros: Clean taste, Easy to install, Long lasting filter