Loved Mirror's Edge. So glad I finally played it.
I really like complex movement in first-person video games and ME is some of the best. It's really well implemented and animated. It doesn't move like Quake (or CPM, Reflex, Warsow etc) - it's more realistic, has different goals - but it's just as satisfying to play.
Story is both a little slight and also well-suited to the scope of the game. If it were any "bigger" it'd be too much I think.
Combat is... not great. Thankfully it isn't the focus, the point. It did hold me up a few times though.
Sound (ambient sound, sound FX) is excellent. Soundtrack (by Solar Fields) is excellent. Nice glassy ambient and IDM-ish stuff.
I dunno. I want to sit here and praise the movement for several thousand words but this is long enough already. Game is fun.