An odd and underwhelming signing for me (I thought the same about Jota so feel free to ignore me)
Seems quite limited, for this level anyway. Perhaps we see him as the creative outlet on the left we've been missing, but a winger who doesn't beat his man and gives the ball away a lot doesn't strike me as very appealing.
He is young and relatively cheap and seems to have a great attitude, but in terms of impact I expect more Minamino than Mane.