I was half glorified-secretary and half-office manager. I had paralegal duties, but mainly just taking the info from lawyers and filing the info into complaints, motions, etc. I know one area of law really well, but didn't do any research other than looking in the FRCP. It didn't help me at all in LS, other than having a real understanding of what it means to practice law, some ethics stuff, and killer computer skills.
I think it depends on how intense your experience as a paralegal was.