Update....
I installed my Micromatic parts: new 5' beer line, longer CO2 line (so I can put the tank beside the fridge rather than hang it on the back) and new coupler. Big difference. The beer line that came with the Avanti setup leaked and made a mess (beer ran down the keg, into the fridge and out the door). No matter how tight I made the fitting it weeped beer out the fitting.
I've read that the line that comes with the Avanti is too short and should be replaced with a 5' line. However, once I received the new line from Micromatic I realized that the Avanti did indeed come with a 5' line. But, like I said, it leaked so I tossed it.
Believe it or not, the temp is pretty consistent with the Avanti thermostat. It hangs out right around 38 degrees and only goes as high as 40 before it kicks on.
All in all it's working very well. I'm still on my first keg but it should be empty soon
Jim