Civilization V - Should I?

[okr]

I have decided to wait with the purchase. I don't think Civ 5 would run properly on my current laptop and thanks to GOG.com and Master of Magic I'm in nostalgia strategy mode atm, so I think I'll search for a used copy of Alpha Centauri instead, which I had already bought when it was released but never really played.

So, @those who own Civ 5 and play it, what's your impressions so far?