No it wasn't.Damn, that sucks. SC2 is still the best in the franchise, and HD was the definitive version.
Edit: Actually, I can't remember if they fully patched the issues HD had at launch. I know they did the major bugs but there might still be some weird PAL version weirdness.
Based on the PAL version (glaring issues patched later), two person lobbies that would close after one match (later patched so you could have indefinite two person lobbies uh... Good job Namco) , no regional matchmaking for ranked... Garbage trash awful netcode on top of that.
Also much higher input lag compared to the SD console versions.