Just got done with the first hour or so.
Enjoying it so far. Still getting used to the controls and sometimes it feels harder than it should be to jump up to a high ledge, as if its placed at the very limit of your jump arc instead of within more comfortable reach, but that's my only nitpick so far. It runs smooth, it oozes atmosphere, and its so damn refreshing to return to a silent, badass Samus.