Product review (4 stars): Good, prepare well before install
This is a nice kit; however, I was unable to use it. Make sure you know all the corners, and cabinet intricacies before buying -- copper bends but it can kink easily. The more corners and angles (along with areas where the pipe is exposed -- under the sink for bottles and other things to bang into) make the install difficult; I had dead space behind a corner cabinet where i would have punched through to feed the pipe.

I choose copper to avoid a plastic tube and the potential chemicals -- looks like I have to find an alternate solution.