Product review (5 stars): Can't Beat the Original
The Sears Kenmore filter is a bit pricey but it does an excellent job. It clearly outperforms other less expensive filters. I always used the Kenmore filter, but one time I thought I would save a few bucks and tried another less expensive brand filter and was extremely disappointed in the taste and quality of the water . So I made the switch back to the Kenmore brand filter and immediately noticed a huge difference in the taste and quality of the water.  I'm staying with Kenmore filter from now on as the few bucks I saved on the cheaper brand just wasn't worth it.
I'm all for saving money but in this case it is true that you get what you pay for.
So if you have a Kenmore Fridge and are looking to replace your water filter, do yourself a favor and stay with the original equipment that it came with.