Matt, congrats on you new ATC/Toy. This however got me a bit curious, "I've been Egging for 7 years with no Auto Temp Control and can not wait to try the Guru out. The thought of actually being able to sleep during a low and slow was the main selling point." Are you unable to do an overnight on your egg without adjusting vents/damper? Don't get me wrong, I'm not questioning your purchase of the ATC for your Egg, I too have a ceramic and use my Stoker for overnight cooks, just surprised me to read this. I've thought of Eggs as even more set it and forget it than WSMs and I dare saw the majority of us can do overnights on our WSMs with no adjustments during the night. Again, I don't mean this post any other way other than just curious in your first hand experience on long cooks with the egg.
You'll love your Guru, my buddy Ed C. has one and it's rock solid and very easy to use.