Fable 2 is without a doubt a very good game. Even though the coop wasn't very good in my opinion the game is so much...
Unlike the first Fable where it was better to max out a talent tree than to use everything in this Fable it's a lot better to use a combination of melee, ranged, and magic attacks. If you really want to you can max all 3 out. When using all 3 this is when you really own stuff. Not to mention the fights look so cool.
There is so many achievements to complete and this game has so much more to offer than just combat and story line. I find myself doing hours of the side quest, jobs, buying houses and shops, and if you went evil like me then you probably spend a lot of time just being plain naughty.
This game has a very high replay value and I'm sure I'll beat it several times as I did with the first one.
With the way they have the talents setup up and what not you can pretty much make a different class each time through the game. For example If you want to make a ranger. Then focus more in melee and ranged combat. Maybe this time around you want to go good instead of evil.
Most importantly this game really does make you feel like a part of your hero. I find myself sticking to the role of the way I want my character to be in the beginning of the game and sticking to that all the way to the end of the game.