Product review (2 stars): plastic taste
I needed long, flexible tubing to connect to the ice maker in my new fridge.  After hooking the hose up [which was easy], the first load of ice tasted funky.. like "plastic."  According to what I have read, this is normal for the first few loads of ice.  However, after 100 loads, the taste was still there.. and strong.  Finally after months, I disconnected this poly-flex hose THAT IS SPECIFICALLY MADE FOR ICE MAKERS, and flushed it out for 1/2 hour by turning on the water supply valve.  Then I tasted the water coming from the hose.  It tasted fine.  Then I let the water "rest" in the hose for an hour.. and tasted a sample again.  PLASTIC TASTE - BAD - YUCK!
The refrigerator instructions specifically stated, "Use a copper supply pipe, not plastic."  Now I know why.