Product review (5 stars): https://www.amazon.com/dp/B0017Y3GGI/ref=cm_cr_ryp_prd_ttl_sol_25
A complete life changer for ice crunchers!!!

I own a refrigerator with an ice maker and I still keep one of these going in my house at all time.  Why? I like chewing ice. (And I have a husband who loves me enough to allow that!) The ice is soft, so it doesn't crack my teeth the way regular ice does.

PROS:
 Everything.
 Soft, but crunchy ice.
 Ice can be made in small, medium or large circular pieces
CONS:
 You do have to keep water in it.
 If you use it all the time - as I do - you'll probably need one every 2 years. (But the use I get out of it far exceeds that expense.)