yes you should have.
The mod is nice and all, but it does change the atmoshphere and for the first couple of run throughs i suggest you leave it vanilla.
With the exception of one little mod. The trader mod . All weapons available (FOR A PRICE DO NOT GET ME WRONG
) You will not have the uber weapons in the beginning but for me i liked the game a lot better with the mod .
Of course i had played through it at ease already, but that's the one mod i would install ..