Product review (5 stars): Great controller, watch the wiring
I love this controller!  It was easy to set up although the commonly linked wiring diagram opens and closes the neutral leg rather than the hot (120 volt) leg.  While it technically works, it is NOT SAFE to do so.  Use the diagram linked from Control Products' website: [...]  It is the proper way to wire this controller.

Aside from the controller wiring, I was amused at the included user manual.  The logic flow diagram was gibberish.  If you get one like I did, just print the one linked from the Control Products' website: [...]

The controller seems to be pretty accurate.  I placed a known good temp probe/thermometer into a glass of water at various temperatures, and the TC-9102 was within a degree throughout the range.  Since I plan to use it for controlling the temperature of fermenting malted beverages inside a chest freezer, the dual zone feature will come in handy.  Summertime is no problem since the cooling mode will be used exclusively.  But in an unconditioned space like my garage, wintertime will see a lot of variation in ambient temperature.  I anticipate both the cooling and heating controls will kick in at the appropriate times.  I picked up an inexpensive heater/fan to be used for the heating source when it's called for.  Sweet!