Exciting!! Are you thinking of making a longer post about him?
i wasnt planning on but in terms of the basics:
he's tall, he's physical, he's explosive, he shouldnt be as fluid as he is - he has an advanced understanding of leverage and route-running attacking leverage and blind-spots to separate at all points in the route... off the release, through the stem, at the break and at the catch-point
on top of all that he's got surprising ability after the catch for someone his size - able to make defenders miss in space but also able to run through and over defenders with the ball in his hands
he uses his body so well at the catch-point - uses the entirety of his length at the catch-point, comes back to the ball, high-points, great hands and protects the ball through the catch
he lacks elite foot-speed to win with pure speed downfield but he's 100% a vertical threat and consistently defeats guys off the release or with his route to win vertically - that's really to me the only "flaw" in his game - he'll struggle to separate on straight up deep shots if it's a race
and honestly i dont care that he's not a burner because he's still got outrageous athleticism and size and he separates and for me separation is always the most important thing (it's why i normally fall in love with more advanced route runners every year) - but what's special about london, to me, is that he separates at all points in the route including at the catch-point and his skillset at the catch-point is elite (think about how chase kills guys even when you think he might be covered)
wish he was a better blocker but he's not unwilling
in the modern nfl the 2 most important questions you have to answer as a receiver prospect are, to my mind:
Can you separate?
Can you make plays after the catch?