You've already seen some reports of astrotracer type 3, but I am here to add my witness that it works - really well! Some little finicky bits about it, but a very useful feature that is even simpler the GPS astrotracer setup (which I thought wasn't too bad either).
With DA* 300mm f4
F4, 40 seconds, 1600 ISO
I was actually getting nice looking shots around 60 seconds as well, but one of the fiddly bits is that it can fail to process if the exposure isn't just right. I was trying to balance having enough exposure to succeed in processing, but not blowout the highlights of the nebula. Tricky. If I dropped ISO too low it seemed to fail more often, so this was the sweet spot that seemed to work and wasn't too overexposed. This is just a single shot, and I imagine for some of these closer/brighter objects it might be tricky to stack shots for a longer integration without having the highlights blown out. I'm a newb at all this anyway, so those more experienced may have different ideas.