I think it depends on why you liked wow and oblivion as to whether you will enjoy the witcher. If you enjoyed them for their open endedness and the way you can pretty much travel whereever you like whenever you like then you may not like the way that the witcher sort of locks you into land locks. Some areas are better than others, but in a very short time I almost always felt like I was being funneled into the direction that they wanted me to go regardless of where I wanted to go. I suppose most will say this is because there is a story behind this game and that's fine, it just wasn't very appealing to have that feeling so much of the game. I think I prefer much more open world game such as oblivion or Two Worlds, or mmo like WOW. It's not a bad game, and I'd say if someone else is willing to buy it for ya, go for it.
