Minor spoilers.
Just finished Ep:2. Definitely better than ep:1, and longer too, I think. The strider battle was very cool and it's beautiful, even on a FX 5200. Thanks, Valve!
What bugged me to no end, though, is the vort's "Good job, Freeman." After surviving all that crap in hl2, destroying the citadel and all, I don't need you to tell me I did good, smooth skin. Especially after I solved a simple puzzle and killed a zombie or two.
WARNING MAJOR SPOILER BELOW:
The ending was predictable, too. "When you get back, we've got a lot to talk about." Gee, I sure hope nothing bad happens to him before I get back!
Overall, very cool. The story is going strange places, but still, great game.