I remember dungeon siege, it was a great game that i just sold it on ebay this past monday.
I beat single player mode, then imported my character for online play. It got boring, the online world has a few new areas but most of the 2nd map is the same as the first map in single player mode, except it's just reversed. The online interface is also unorganized, it's just one big room with one long list of games world wide and needs to be refreshed everytime u scroll down a certain amount.
The item system is pretty cheap, an example is 2 boots, 1st boot may have +7 to health and +13 to armor while the 2nd boot has +9 to health and +11 to armor, there so many items like this example which differ "so sightly" with "so many" names such as greaves of the owl, greaves of the wolf, greaves of the fox, that these items have less sentimetal value than those of diablo II. If you found a grandfather sword in DII, you would go nuts and advertise "OMG, I found a GF, I'm willing to trade for 20 sojs!" but if you found an item here, and said "I found lava boots " u might get a response like, how about my rat skin armor for those boots?
compared to the monsters found in final fantasy X monster arena such as nemesis, the 3d in this game looks totally outdated. Warcraft3 is coming july3rd, and I think that's much better and it contains some rpg elements such as lvl up and finding items.