The quests can get tedious but it offers alot for those who thrive on puzzles. You feel at home immediately in the story and with the excellent voice acting. I loved the fully animated environments in the game with no small detail left untouched. For the sake of completeness, you can affect almost everything in the game so you become much more than just a participant in the adventure, you become the real hero in the story. Every little bit of humor is faithfully rendered in the story too and I found myself laughing at many of the voices and things I had to do to complete my missions.
I would never say rent this. I would say buy it and play it for yourself. I could try to describe a hot fudge sundae to you but you need to get a spoon for yourself for the full effect.