How do you rate Civ V after the first 4 weeks?

I voted D for the moment but I'm wondering if that isn't just standard sequel-ism for me. I think once the modders have fully had their way with it I'll like it more. That happened to me with Civ 2, 3, and 4 as well as the Sims 2 (although I still hate and will always hate Sims 3) and Neverwinter Nights 2 for that matter. None of the sequels really became all that interesting to me until the fan community had done their thing.

I gave it a C because although I don't like the current state of the game I am hopeful that future expansions can add new dynamics that will balance the game out more.