For more information on Titan see my Titan Home Page.
Titan is a fairly unique game that will not suit everyone's taste, and even amoung people who like it, it will not always be the game of choice in every situtation.
Within its niche, it is a very good game (in my opinion).
Probably the most unique feature of the game is that it is a multiplayer game with lots of important interplayer interaction that makes ganging up on the leader difficult. So the game does not feel like either a race game or a balance of power game; though there are some aspects of both in the game.
The next uncommon feature of the game is its two levels. Players move their legions on the masterboard picking up recruits; sometimes dividing their legions, so that they can replace weaker creatures with stronger ones. If two players' legions meet on the masterboard then they go to one of 11 types (based on where the legions met) of battleboards and fight until only one of the two legions (well sometimes no legion) is left.
The game has a fantasy setting. While that does add to my enjoyment of the game, I don't think it is a big deal.
The game has a highly variable playing time. People are knocked out one at a time. The game may go on a very long time after some players have already been eliminated. This is especially true when there are lots (5 or 6) players.
They game may take too long for some players' tastes, especially new players as their games will often take much longer. Games with more than 2 players will typically run 4 to 8 hours if the players are experienced, however occasionally games will take significantly longer.
Two player games, play a lot differently. And will run between .5 and 3 hours, occasionally taking significantly longer.
Some people may find that waiting for other players to fight battles is boring. Others will find them interesting to watch, or will use the time to grab snacks or use the restroom.
The game has some hidden information, but a lot of known information is kept hidden as well. This means memorization is important for doing well. However you can still be competitive by just having a rough idea of what is in stacks and where the titans are.
The game has lots of dice rolling. Some rolls will be very important. This means that players can have the game decided on luck. It also makes for some very tense elements of suspense, when you know the battle or game is resting on the next die roll.
One thing I like about the game is that to play well requires a lot of situational judgement of a lot of factors. To get a feel for some of the entry level strategy you can look at some strategy hints collected by David desJardins.