Conte is an excellent manager, he's an absolute winner in the league, there's no denying that.
However, like Jose, the worry for me is when the winner isn't winning. I know he won the league with Chelsea when Klopp & Pep were in the league, but they hadn't built the winning machines they are now.
So even with Conte's very impressive league record, has he ever had to compete against 2 machines like City or Liverpool? If he doesn't reach their standards, will he be content with that, can he accept that, or will he demand more of the club and players until they get to breaking point?
The club look like they are going all in for him this season, which is fair enough, but can they do that in multiple windows? Can they convince him to build the club over time, to sign a new contract, to move his family over & settle over here? Because until that happens, it's hard to look at it as anything other than hes looking for a quick, sharp, short reign.