This unit replaces an 18 bottle dual zone that we had for about the same price.  Once the temperature is set for a zone, it varies only slightly and resets itself to the correct designation.  Handles bottles of various length and girth with no difficulty.  Extremely quiet.  The digital displays don't have a dimmer, but it's not in my bedroom and it makes a nice nightlight.  So far, extremely pleased.

Pros: Quiet.  Great price.
Cons: No dimmer on digital display.