"Heat and noise. Do they get toasty under prolonged use?"
No noise that I can determine. I tried baking it with YouTube videos and I was able to get each core going at 30-40 percent, with the CPU core temperatures up to around 60°C. The bottom of the device did get pretty warm.
I then played four YouTube videos simultaneously to get the processors pegged around 75-80 percent, and five videos got the machine pushing both cores into 90 percent usage for a while. Obviously, most of the video wasn't playing well at this point, but the cores seemed to max out around 72-75°C, mostly because the fans kicked on after around 2-3 minutes.
I had to put my ear right up next to the back of the laptop to actually know for sure that the fans were really running. The fans are very quiet.
The temperature on the bottom of the device was what I would describe as mild. You can tell it's warmer, but maybe only 10 degrees above ambient. After about 5-7 minutes of this, and with the fans running for a while, it got slightly warmer. Still, it's nothing I haven't felt on any other laptop before, and nothing I would describe as "hot."
