I still use the 'old style' Stoker and I've been very happy with it.
I'll admit that it took a little while to figure out that I needed to assign the blower to one of the temperature probes - but once I understood what it was I was looking for - well it was right there in the instructions. I just didn't understand what they were saying the first time through.
It performs well at any temperature too. I've had it running outside at 5F overnight and well over 100F in the summers.
The two times I've contacted their customer service have been very nice. Got answers right away both times.
I can only imagine the improvements in the newer models.