Keep in mind that China is not where it is today because of Xi. He could take it further for sure but so can he press the wrong buttons. It remains to be seen how China fares in the next few decades.

He's doing a better job than Zhao Ziyang, that's for sure.

Yep, China was on a massive and insane growth trajectory prior to Xi. Xi's policies and constant banging of war drums at Taiwan's door has cost China massively in terms of foreign investment and even knowledge transfer opportunities (by the ever-gullible West).