Well, The graphics are really Improved, They made it Three-D!!!!

My opinion about races:
Zerg:
Bad News
1. Darn it? The Queen is an Ground unit?!?!
No
2. Awww, Infested Terrans spawned by Infestors?
Better
3. WTF? EXPLODING ZERGLINGS? (Do a barrel Roll, Wait, You can't?)
Baneling
4. Infestors can move while Burrowed? (Seriously? I mean, SERIOUSLY?!)
Detection
Good News
1. Nice move about no infested terran buildings (No one will pick terran then)
2. No Armored Godlike Guardian? Hurray!
3. Corrupters? And What?!?! They can control Units?! And they DIE?!?! (BC wasted)
Terran:
Bad News:
1. WTH is a Tech Lab?!
New Building
2. Fortress on Command center? I want to see what happens when it lifts... (FLYING FORTRESS LOL)
Expo Defense
3. Ooooo, Jetpacks.... So rigged :D *Goodbye Dropship at start*
Only for reapers
4. WHAT, NO MEDICS?... WTH, MEDIVAC DROPSHIP? How do they heal ground units?!?!
....
5. Wow, Plasma beam Overpowered *Can wipe out 50 zerglings with 2 shots*
Source, please
Good news:
1. OOoooooo, Sniper Rifle.... Nice >

2. Yay for no Infested Terran Buildings!!!!
3. Marauders (The human Siege Tank)
4. Vikings! Transform, And ROLL OUT! (The Goliath and Valkyrie together)
5. Zealot: OMFG BIG WEAPON *Points at Thor*
Protoss:
REALLY BAD NEWS: No Twilight Archons for multiplayer? NOOOOOOOOO!!!!
Its the same freaking thing as a regular archon except different graphics.
Bad News:
1. Yay for no hybrids
Thats for the campaign only.
2. No Tempests?
Wow Replaced with the carrier due to "emotional connection with the unit"
3. The energy field are rigged
No.... Just no...
4. The immortals + Stalkers = DEATH
Air
5. Warpgate is CHEAP *Teleport all your **** on your enemy's Base, SCREWED
If you are a D+ You would know that you should construct perimeter defense in every game.
6. No scouts? *They got an Retirement*
Scouts sucked
7. Wow, Black Holes? Seriously? You can just decide the whole freaking battle with this serious Big Crazy Mother-****ing Overpowered Ship.
Black hole was canceled
My Rating right now?
Balancing is Really, Zerg< Terran< Protoss