He's a good athlete. Plays faster at receiver but there are a lot WR's with similar tape.
His D Highlights show 0 technique, he's just watching the QB the entire time. He's not afraid to be caught flat-footed, I'm not sure if that's because he has so much faith in his speed or he just knows the QB's are garbage. Probably a combination of the two. I would have liked to see some plays where he's jamming up a receiver or showing proper footwork and mirroring their routes.
He doesn't come up and hit. Waits for contact which I don't like. It won't be as much of an issue if he's playing corner.
Overall he's got the skills to develop but he's raw at corner. It's not surprising he's a three star. Just my opinion after watching his junior highlights.