GG isn't as hard to learn imo... It's the same as KOF and VF... There's a bit to learn, but looking at it all at once can be overwhelming for some ("09er repellent" for some)... Just take the game in bit by bit, and learn it... It's not too difficult...
Anyway, I'm surprised no one here is on the Testament or scrub Millia bandwagon... I do play Testament, but I like his playstyle, and was using him for awhile, along with Slayer, Axl, and Bridget...