And...overheating issues last night (thermometer image on screen) while setting things up, installing updates. Literally had to get a desk fan onto the SP3 for a bit to get through all the updates. lol. Now...after I did get through the updates it's been 10x better using it today.
I thought it was announced back in August software/firmware fix was coming - but I haven't actually seen if anything was done yet. If there is a fix if someone could kindly link me to it. Otherwise - just pushing through the updates things seems better.
More stress testing tonight...
9/10 experience so far (fan/heating is only concern, pro 2 seemed way better at this, but then it was an i5, not as slim).