DMC 4 too many puzzles??

I read some players impressions about DMC 4 and a lot of people talk about getting tired of the puzzles. (I pre ordered this game and ill get it next week)

Are there too many puzzles in the game? Are the puzzles boring? I dont like games that you have to enter "20 rooms to unlock a door that gives you a key to another door" Is DMC 4 like this?

I liked a lot god of war series and Uncharted too (just to give you some examples of games that have puzzles) but i dont think that the puzzles in these games were boring at all, the impression that i had from reading the other players reviews was that DMC 4 had too many puzzles.