i think gears is an alright game, but it is REALLY damn short. i beat the game in around 6 hours on casual, and have almost beat it again on hardcore (around 10 hours). multiplayer is lacking though...it does have its team deathmatch which is generally really fun but come on...how about a free-for-all slayer based match? ctf? anything? its lacking big time when it does come to multiplayer. GoW is one of the best games I have played this year, and it probably will be game of the year. But it really does lose its lasting appeal, after you collect all 30 COG tags theres nothing else to really do.
You have to take GoW for what it really is. Its a first step in the right direction and hopefully when GoW2 comes out, it will be a hell of a lot tighter and better. Cant wait.