Product review (1 stars): Cannot recommend product...it leaks!
I was very hopeful about this product, but I had a very hard time with the install. It is a relatively 'easy' install, but the problem is that it leaks once connected. I tried to install with plastic ice maker connection tubing but once I turned the water back on, strong leaks developed at the point where the tubing connected with the filter. So then I tried with my original copper tubing, cutting it to try the install. No dice, same leaks at connection points.

Attempting to install this product ended up costing me $26.

I replaced the copper tubing with a stainless steel connection like this, for a much more secure connection:

http://www.amazon.com/Watts-WTS-SPCC120-44PB-Stainless-Icemaker-10-Foot/dp/B00439HNF4/ref=pd_cp_hi_0

UPDATE 5/31/12: I found an ice maker filter that I am very happy with: [...]  Installs easily with 1/4" threaded connections - no danger of leaks!