Product review (5 stars): Easy,  Breezy
My family goes through a lot of water in the course of a day, and we rely on our refrigerator to filter it.  It's great that the inside of the fridge has a colored light to indicate when the filter has started to turn.  With the Pur W10186667 Push-Button Refrigerator Water Filter, the system couldn't have been easier:  it's simple to swap out and subscribing to replacements has been extremely convenient.

I think that's the part I liked the most--the subscription.  You can choose to do this with a lot of items at Amazon but this is the only one I've felt a need to subscribe to.  It's eerie how efficiently this works:  within a day or two of the light turning color, I receive an e-mail from Amazon that a replacement filter is on its way.

Swapping out the filters is a snap:  near the floor on my fridge is a button that pops the old filter out when you push down on it.  There's a plastic cap that appears to function solely as a handle, but switching the cap over to the new filter also makes sure it's perfectly lined up when it goes into the opening.  Push the new filter in using the cap until you hear a click--it'll take a bit of force--and everything's done.

As an added bonus, the way these are designed keeps water from spilling everywhere:  when you swap out, you're not going to have a mess on your hands.  I tried to drain the old one before putting it in the recycle bin and found I couldn't easily open it without cutting the ends off, so I just left it as-is and dropped it in the bin.