Enclave isn't perfect; the checkpoint feature and lack of quicksave is frustrating and the characters are not well balanced. But with gorgeous level design, its not a game you want to miss. Sadly, I think many players have skipped it.
The design was good enough and even for a short game, MOD:AA was a load of fun. Probably not quite as fun as Soldier Of Fortune 2, but I'll be sure to play the two mission packs and look forward to the two PC sequels released since MOH:AA.