As I have observed , 習 doesn't seem amassing power for the sake of power though I use to think so when he amended the Constitution as to remove the term limits. Looking back with the advantage of having witnessed international politics in the past few years, I believe Xi's intention was to ensure China's independence from the western colonial power framework over the globe. I think this framework is the one most harmful for the world's future, and China is its main threat and target. Recognizing this reality or not seems to decide how one views Xi to a large extent.
Somehow from past comments, you don't seem much worried by this power framework. It is a masterpiece of Western global colonialism across the past few centuries. It is by now hidden under, enveloped within and decorated with so many "correct" and righteous ideologies and it operates so well.