You know, this is the type of reaction that makes it all worth it. Dr. Stribbling was a pain in the ass to get working even 20% right, there were a lot of frustrated nights spent trying to figure out why Marcus wouldn't *&%^ing spawn or why the Dr. kept repeating the last mission over and over (but not in the way I meant it!). But knowing that someone thinks its great is all worth it.
I am sure the other devs (who were responsible for the other awesome stuff you mentioned) are feeling the same way.