Only problem w/ DoD:S in my mind is that since it supposedly will only be available to CE owners or silver+ steam accounts, without even the option to purchase it separately, the number of people who will be playing it will be limited. Though it might not be if enough people make the bigger purchase. In any case I'm (so far) happy with the $35 I paid at Amazon for the standard version (w/ a $10 certificate).
In any case, the performance issues people seem to have been having have to do with texture thrashing on the video card, with a side effect being sound stuttering. They have supposedly released a patch which fixes it, though I never noticed it to begin with, so I can't say for certain if it fixes all cases.
Still, it's a decent deal even at $59.99 since Valve charges $90 for the gold package, which is essentially the same thing with the soundtrack and some other random goodies, but minus the DVD since most of the stuff is downloaded.
In any case, the performance issues people seem to have been having have to do with texture thrashing on the video card, with a side effect being sound stuttering. They have supposedly released a patch which fixes it, though I never noticed it to begin with, so I can't say for certain if it fixes all cases.
Still, it's a decent deal even at $59.99 since Valve charges $90 for the gold package, which is essentially the same thing with the soundtrack and some other random goodies, but minus the DVD since most of the stuff is downloaded.