Product review (5 stars): my iron was great! ) This made ice that was the PERFECT ...
I bought this over a year ago when I was pregnant as I had a crazy need to chew ice ALL the time.  (And for those wondering, my iron was great!)  This made ice that was the PERFECT texture to chew, not too hard, no too soft. (Almost as good as hospital ice)  It has two different sizes small and large, I always use large as they're really not that big, probably about an inch diameter?  The machine itself is great, the loudest noise it makes is the ice dropping into the tray.  It does have a hum but it's no more noticeable than a refrigerator hum.

For the record, to clean it you should just run a little vinegar-water through it.