Should a first time player use SCS mod to play?

So I have been on and off on getting into baldurs gate, and have finally gotten the time to delve into it full swing. While doing some research I had found the SCS mod and figured it sounded like it helped out the game big time and installed it.
But while playing I feel like it changes some things... IE; characters you meet, most noticeably your first two companions you meet at the inn... Have I just mistaken or does it actually change big things like this?

Should a first time play thorougher use this mod?