There really isn't much to say about Torchlight except that it's an almost exact clone of Diablo. The graphics are a better of course. If you really like that cartoony thing this game is for you. Dungeon crawling, loot getting, monster crushing, time wasting decent game to play while you are waiting for Diablo 3 to drop. The price tag is right on. Torchlight is definitely worth getting for only $10. If you have time to spend and $10 with nothing better to spend it on go for it. Buy Torchlight and make the wait for Diablo 3 a little easier on yourself.
Not just a clone of Diablo
A lot of people would say TL is just a clone of Diablo, but what they don't know is that the team from Blizzard who originally worked on Diablo 1 & 2 are the creators of Torchlight. While I have not completed the game yet, I have enjoyed the time I put into it. The underground dungeon floor system gets a bit stale after a while, but it's not so bad. The talent system gives you just enough customization for your character, and the 3 classes are all fun to play. Its lack of multiplayer is the game's biggest downfall. I would say this game was more of a prototype and funded Torchlight 2, which is coming out soon. And THAT one looks awesome with the addition of multiplayer and more classes.