.803 OPS in 510 ABs at AA, .851 in 21 ABs at AAA, he'll be 20 in March so he's way ahead of his peers.
He's playing in the Venezuela winter league and has posted a .984 OPS in 66 ABs. He has struck out as many times as he has walked.
He wasn't bad for sure, just not elite. Prospects bust so often I'd feel pretty wary of offering someone a contract like that with such little experience unless they were putting up Holliday numbers. I wasn't aware of the Venezuela Winter League numbers, those are certainly much more promising.
Edit: For reference, Wood put up an .826 OPS in AA last year and people thought that was a bit disappointing.