The biggest problem with the game is (as ususal) the AI. Some of the races have units with a camouflage ability, but the AI can see them and responds accordingly, and the AI also plays very cautiously unless it's clear you are seriously and irredeemably out-gunned.
So playing against the AI usually results in either a really easy game, or a game which you will in all likelihood lose. There may be mods to fix that now, I don't know.
The fan patch, 1.4, over at AgeofWondersHeaven, may fix both those. Can't remember. However, the game does come with something like 5 different levels of AI, so you should be able to find a happy medium between too easy and too hard. Also, the camouflage units don't have to be important at all, if you don't want them to be. It's only a couple of races, out of something like 8 or 10, that can make significant use of them anyway.
@magerette: the interface does take some getting used to, but it shouldn't take you long. Once you get into the swing of it after an hour or so, it's not hard to remember. Play around with the copy you have, and if you like it, I'd recommend upgrading to the Shadow Magic version.