Product review (5 stars): Worth the investment
Just got my first 'fridge with water/ice in the door.  The house had been plumbed for it, we just never got one.  I finally splurged and bought a nice LG french door bottom freezer unit at Sears, which their site recommended an additional hose for $6.  I was going to buy that, then happened to look on amazon just for giggles and found this guy.  This is one high quality hose.  Since this is something that will be sitting behind the fridge (where I'm likely to never see it again), and contorted into lord-knows what shape when the fridge gets pushed back against the wall, I decided it was worth a little premium for the peace of mind.

The other thing we did was get a regular plumbing fitting to connect the hose to the house pipe - a lot of what's available is called "self-tapping kits", but the refrigerator manual specifically recommends against that.  IMHO a lot of people who experience leaks with the fridge probably went with a self-tapping connection and a cheap hose.  So to me, a few extra bucks to make my >$2K refrigerator work well for a long time - totally worth it.