2nd Edition was a superior overall game to the first one and IMO, also marked the high water point for Epic as a game. My only quibble with second was that titans tended to be a bit too fragile... although it may have been because basic infantry and tanks could hardly scratch them in the first edition.
I never managed to get excited about this version
although to be fair, the concept of firepower and detachment level results fits well with mass 6mm scale gaming. For some reason though, the level of abstraction made the game too bland. If they had abstracted the infantry/tanks while keeping the flavor of the superheavies and titans it might have been more acceptable to the existing gaming base.