I'll try to be short & sweet. Resistance 1 was a decent game, it was the Halo killer i hoped for and i enjoyed it but towards the end, i admit, i did lose interest.
Resistance 2 however, comes back with all that and more. The storyline is good, the single player is nothing short of Epic with a capital E. The graphics are outstanding and the sound, AI and all those little extras are great. Can't fault them.
The enemies will move, duck, team up and do anything to beat you, so you have to use your FPS experience (even on easy mode) to kill all those enemies and make sure you come out victorious.
Online mode. This game EXCELS in online mode. Whilst having 60 players with no lag, the game offers a variety of large maps and various options with team deathmatches etc. You can make a clan, go around in your party.
I could go on..
Bottom line. Try this game, hopefully you'll enjoy it.