He is good and had the Barcelona-style in him. But I think it is way too early, played only a half year in Ajax. Besides that he did nothing extremely special like Pogba did in his age. Just coming back beteren defence and midfield and sometimes a rush forward. I would dat 90% IT works, but je need tot play with more risks.
Why do a lot of Polish players play in Serie A? I find it surprising that despite a large Polish community in the UK, there are very few players who play there at the top level. (Fabianski and Szczesny are exceptions).