Product review (4 stars): Read the instructions
It appears that many of the problems that motivate people to post negative feedback are related to incorrect installation.  All of the common mistakes are covered in the instructions, so they are easily avoided.  The number one thing is to be sure you do not tilt the filter after you remove the plug, or the critical o-ring may fall out and get lost.  It will leak without the o-ring.  The second thing is when you line up the start arrows and push the filter into position, make sure you give it a good firm push so that it is fully seated.  You may initially get a slow flow.  That should resolve itself after 1-2 gallons pass through the system.  If it does not, simply remove the filter and re-install it.  Run some more water through, and it should flow just fine.  This is a good product; made in the USA.  I am simply not going to pay forty some dollars for a GE filter when my public water is already safe to drink and my needs are to improve the taste.  This one works fine.