Product review (4 stars): Updated review... Went from 1 star to 4 stars
So I have always used the older PUR water filters without any problem. Since they are no longer available I've had to buy this new Everydrop filter for the first time.  Well I've had it for exactly 3 months and the filter has used up one bar on my refrigerators digital water filter meter, meaning I still have three bars left of usage. Well, the other day my refrigerator stopped dispensing water and starts making a crazy buzzing noise. I then thought "Oh great my refrigerator is busted." I then remove the Everydrop filter, which was warm, and I then inserted the old 6 month used PUR water filter I had kept. Sure enough it starting dispensing water again just fine.  So today I call Whirlpool to complain about this. They told me that since I bought it through Amazon they cannot service it or warranty it at all. I explained to them that they're the manufacturer and they need to fix the problem with this filter, maybe it has a flaw which could damage a refridgerator. But they wanted nothing to do with my concern, even after talking to a supervisor, and told me to complain to Amazon. These filters are no good and could possibly damage your refrigerator compared to the PUR filters.  And what's worst of all, the manufacturer won't stand behind them if you buy them from anywhere but them.
Update: I made a YouTube video of problem. It can be seen by searching for it's title:
Whirlpool Everydrop Water Filter Problem

Hope this helps.

Update... So after a few days my older PuR filter started having the same problem. So I changed out the filter housing. So far so good with a new Every drop Filter. Will update if problem comes back. Still disappointed with whirlpools costomer service though.