Bought it yesterday as well and first i was disappointed about no Zerg and Protoss campaign too (i love zergs) but then i realized it's actually better this way, cause the campaign is so nice with many missions, details, achievements, upgrades, etc.
I wonder when they will release Heart of the Swarm for the Zerg Campaign but we will see.

The game is really awesome so far, i loved to play StarCraft (especially with broodwar) and this is just super fun. The hard missions are actually pretty hard sometimes lol but i am not a really good RTS gamer anyway. Though i want to collect all the achievements later on.

And i might even enjoy the multiplayer more than the old game (im not a big fan of multiplayer matches except with people i know, and in coop hehe) but achievements push my motivations to game a lot actuall, and there are a lot of multiplayer achievements.

If you want to add me to battle.net, leave me a message with your forum username when adding me laugh

ID: kiyaku <dot> is <at> gmail <dot> com

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"Tag und Nacht schrei ich mich heiser,
Wind weht alle Worte fort,
Tag und Nacht schrei ich mein Krähenwort!"
Subway To Sally - Krähenkönig