StarCraft II's first patch - how does it play?

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StarCraft II's first major patch since its launch has arrived, and it's tweaked a few things. I've spent many an evening with the game since patchification and now feel qualified to weigh in on the changes, having already lost days to the vanilla version. Polite note: those of you unfamiliar with StarCraft's intense multiplayer, please be mindful that the addition of five seconds to a unit's build-time is a game-changer; those of you who play regularly, WTF THEY NERFED THE SIEGE TANK!?

Look! The stim-pack is all green! Ever wondered what colour the Marauder's concussive shells are? THEY'RE SILVER WITH SOME ORANGE BEHIND THEM! You can't wonder any more!

How are you finding the patch? Did you also physically squee with delight when you saw the combat shield upgrade was now coloured in grey? Are you a child like me?