I've seen him 3 times this year. Fringe prospect with good upside. LF-only, good runner, pretty good bat-to-ball skills.
Good build and run tool, and some pretty good contact: missed a cycle by a homer on Sunday, but two of those were fringe error/hits that get eaten up by MLB defenders (the double was a missile). We'll see how the pitch selection and ability to foul stuff off evolve. That and if he can get a little more power will determine his future. With his swing plane and build, there should be some more power in there. If he could play CF, this would be a clear fourth OF with a 5-6 WAR boom case, but I don't think he can play CF without being very exposed on arm strength. But he's still fairly young for level, so there's some real upside here.