Id have said fair to good condition by those pics, but one man's fair is another good.
I bought a Leupold scope based on a description and no pics because the price was low. I said "I'll take it" quick knowing if I didn't someone else would. Surprised when it arrived. Completely "plumbed" out to a purple color and it was much older than I expected. Said screw it and gave it to a buddy who needed one. It was only $125 though, so no comparison to $675.00
My worthless opinion is that he should give you $100 back. You'd have a decent deal at that and he keeps his reputation.
If the rifle was bought as a shooter $100 is meaningless
