I only used someone else's once, so no expert, but here goes...
Pros: Small, accurate metering in my experience, well-built (more plastic than other Nikons, but still feels very sturdy), one mechanical shutter speed (can't remember what) in case battery dies.
Cons: Aperture priority automatic exposure only (no manual control over shutter speed), exposure compensation only by changing ISO... I think.
Like I said I only used one once and about a year ago, so please correct anything I got wrong.
Personally I'm not sure what it would offer you that your F75 doesn't already, except looking and feeling nicer (although that's a good enough reason to get one if you spot a bargain!). A camera with more manual control would imo be preferable.