Haven't purchased yet but that's what I intend to do.
All those who are considering a 13": While there are no dedicated threads about 13" being particularly problematic with an external monitor, there are a lot of threads and YouTube videos talking about how hot it is
in general. It's a good idea to do your own research outside this thread as well, to calibrate your expectations.
I personally thought of exchanging from 16" to 13", but the anecdotal data didn't support that decision. I couldn't realistically expect a major difference in overall experience, so it wasn't worth it. It's just the nature of these laptops: they get hot if they do some Real Work ™. And the 16" gets hot in
particular scenarios outlined in this thread.
A what-if scenario:
If I didn't already have a late-2019 Mac, I would sit out over September-October events, just to see what they deliver next. I would also see if it's an ARM 13" or 14.1" laptop. I would watch all early YouTube benchmarks of how it performs with Rosetta 2, and if there are any downsides with the first generation.
The DTK has shown very good Rosetta 2 performance for Intel apps, and stellar native performance, see another thread in these forums. Some German article (now pulled) showed measurements indicating that the DTK is
already faster than the current 16" with native code, with previous generation iPad Pro Apple Silicon.
If that turns out to be the case, and if there are no apparent bugs, that's what I'd get, add AppleCare, and science the crap out of it during the evaluation period, while the 30-day refund is still in effect.
I was one of those who bought a Rosetta 1 laptop, the first Intel machines. My first Mac. It was awesome, and all PowerPC software worked out of the box. Still one of my favorite Macs, though it was stolen a few years later. While it's reasonable to be a skeptic about generation changes, I don't think it's reasonable to categorically skip it, that's a bit paranoid IMO.