He's 19 so it would be surprising if he was consistently brilliant. Definitely worth a punt, let's see if he can overtake Bergwijn and Lucas for RW.I have also considered him as a player to sign this summer. He can also play as a COM (but not often employed as one).
However, I read on some from that PSV fans consider him inconsistent. He's still young and knows England & Spurs, so for around £15m+ I reckon it could be worth a punt.