Hi dpc:
I just got a 3DWiFi, and did a seasoning run and smoke yesterday. This thing is awesome! I saw <3* temp drop (never saw it overshoot that I'm aware of) the whole seasoning run. Now, does that tight of temp control matter? Can't answer that for you. But, the temp control is so much better than my pellet smoker and gasser, so much so that when I smoked some chicken breasts last evening, I spent most of the time inside.
I would say call Steve and leave a message. Can't hurt to try. Even if he's taking a day off (he shipped my smoker last Sunday!!), it would show you tried to take advantage of the offer before it expired.
In my very limited experience, I can say "great company, great product, great service".
Oh, this is a pretty good forum too, lots of experience and help here!