Eff yeah!
I broke my college firewall using PingFu (tunneling via a proxy yeah), and I managed to get steam working ;] So I dled the demo at 40kb/sec during the night and started playing this morning.
I can even play it online with about 200-300 ping on euro servers, and 500-600 on us ones
Thanks to the source netcode it's playable, and I completed the demo on normal mode with 3 other players. So my first L4D game was successful D:
Was fun but way too easy, so I'll try harder settings next time :x And of course it works like a charm offline (0 ping ftw). And it looks good enough, and runs perfectly smooth under all circumstances (8800GTS 512 > MSAA 4x, 1280x1024, AF16x and all rest maxed =minimum 40fps in very heavy fights).
I can't stand the maximum setting for film grain though, so I set it at the default value.
Definitely a game I'll buy