Have no problem with China having a communist authoritarian regime. If it's delivering for the majority of the Chinese people, what's the problem? It's hard to argue with the results - China's poverty has dropped dramatically, while it's physical infrastructure has developed tremendously.
However, Chinese have to be cautious and not be arrogant too soon. Japan, South Korea, Asian tigers, etc all went through the same blistering growth and development that China did...and then fell into an economic quagmire, mainly due to the economic development system (high export/low wages/high investment/low consumption) they used....the same one China is using. Still, while China's growth in the future will not be as high as it has been, it will still grow and will likely become a superpower.
Some criticism of China is warranted. They way they've been acting is quite in some areas is downright pathetic. Tibet's just one issue. Tibetans do NOT WANT TO BE A PART OF CHINA. It's very simple. China invaded and annexed Tibet. Whether it was historically a part of China before then is irrelevant. By that reasoning India could annex everything from Afghanistan to Burma. Italy could annex huge parts of Europe, etc. The bottom line is Tibetans don't want to be a part of China. What the West has done in the past is irrelevant to that issue. Secondly China's bullying in Asia is beginning to grate on it's neighbours. It claims the Sprately Islands and whole of the South China Sea for itself with no consideration to it's numerous neighbours in the region. It even claims a sliver of North-Eastern Indian territory, which in the last 10 years it has suddenly decided is an integral part of China, even though it never mentioned it before 2000.
It's essentially amount to China stomping around like a little kid screaming ''Mine! Mine! Mine!'' and using the ''Hundred years of humiliation'' as an excuse to act like a douchebag. Newsflash China, you weren't the only people in the world who were exploited and humiliated. Time to get over it.
I don't agree with some of the 'China Doom' opinions out there, but once thing about China is clear. They can give it out, but they can't take it.