He can be fast, He can score goals, He can make your team win but the question is if he is stable ?. Will he be as solid as Messi, CR or even Zanetti? then let's stick to this thread till we find out.
Mbappe is the real deal, he needs to leave France though but not sure who got more money than PSG. He has all the tools to be the best, he reminds me of Brazilian Ronaldo.
The guy is very talented but Ronaldo was more polished at 19. His raw talent was unbelievable. Having said that, Mbappé will become world best at some point. but then again, the world lacks players in his level these days. In Ronaldo's time you had several retiring, several ongoing and several upcoming players with comparable levels.