Hey Ernie,
I've looked at the CyberQ, and I personally think it's overkill for the SI units. Correct me if I'm wrong, but my take on the CQ is that it is an incredible unit for controlling temps in smokers like the Big Green Egg, due to the ability to run multiple fans. No fans are necessary here. If I had a traditional smoker, I'd be all over the CQ.
I use the Auber WS1503 in the #2 and absolutely love it. I combined mine with the permanent box probe from Auber, which I believe makes the unit so much more consistent.
Auber pros:
1. The ability to set 6 different programmed steps, based on a time or temp trigger.
2. Combined with the permanent probe, the unit holds temps within +/- 1°. Can't get much better!
3. The ability to "autotune" the unit to YOUR smoker, not just a "generic" program.
4. Cheaper than the CQ, and gives you all the capabilities needed for this type of smoker.
Auber cons:
1. No WiFi. You have to look at it every now and then. I use this as my smoke day exercise program (which I need). Makes me get off my pork butt and walk outside!
2. That's the only con I can think of, other than maybe that it's not waterproof.
You can't go wrong with the Auber.