Pro; it's short, not gonna waste anybodies time watching a 10 minute post-content animation, and the voicework is great.
Con (And this is just me being picky); Glados doesn't require an interface. It is the computer it would interface with. And she seems to turn around really slowly, half the animation's gone before you see it's 'face'
God i'm not holding back today am I c:
Good overall +