Product review (5 stars): Moderately easy to install
The refrigerator in our apartment has an ice-maker that was not hooked up so I bought this kit.  I installed a similar one in my mother's house several years ago.

I, in fact, originally purchased a copper tubing kit from a home supply store but it was too easy to kink the copper tubing so it never worked and quickly broke due to the softness of the copper.  This kit has the same flexibility - in fact more flexibility - and won't kink in the same way.

I grew up in an old house that constantly needed repairs that I was called on to fix, so this wasn't too hard to install - especially since I had done it before.  It should still be pretty simple if you don't have home repair experience - you certainly don't need to be a plumber - but it can take some trial and error to make all the correct connections.

Regardless - now we have plentiful ice!