I have a 1st-gen surfacebook, and this thing for sure is not quiet or cool. It can barely run MTG Arena at 720p, much less stream it at the same time. Forget about any serious game. It gets incredibly hot, especially on the GPU, as there's only one fan for the keyboard area pointing at the screen, and it's tiny. The fan on the tablet portion is woefully inadequate for an i7, so spins up shortly after start and never spins down. And the full metal chassis means the entire computer gets hot.

Perhaps the battery life might matter more if it actually slept when it was closed, but the large number of spurious wakeups in bag caused me to assume the battery will be drained whenever I arrive.