I've been using Gameaccess for at least over a year, and if you have the reserve a game feature you can definitely get the new games, but you just have to be prepared to check their list of games every other day for when they post that new game you want. Using this system I have had no trouble...
I bought it with an extra 20% off from being a Hall of Famer level member. It's hard to argue with a price like $38.41 after waiting only a little over one month after release! :)
If you got the Steelbook Iron Man case I'm sure it's essentially the same. Not overly impressive, just different from the traditional case, with no traditional back of the box info.