When people can't openly express dissatisfaction and are censored and are subject to organised propaganda, then it's very hard to say.
Under the communist government peoples lives haven't improved: look at the great famine. So yes I disagree peoples lives have not improved because of communism in China.
You ask me to pick which era of government I would like to be under. But its all the same government using propaganda the same way.
So what if it is now improving the vast amount of peoples lives. What about the minority being tortued by it?
My conversations with Chinese people don't show a favour with the current government. But that's not much of an indicator, under the great famine, their was probably even more vast support for the Government. That's the nature of propaganda.
You say China has improved under communism. Think what it could have achieved without it. Or look back even further at what it achieved as an empire.
The average Chinese persons life has improved from an absolutely horrific existence under communism to a slightly better one - might be more like what your saying.
As I said before, it's the same party as always. Until propaganda is removed and freedom of speech installed, public opinion is far from fact and the average Chinese persons quality of life is as much fiction as it is belief.