Cai is the CEO of Xin Chang'an Group, a private pharmaceutical company based in Xi'an. He hopes Xi's team can boost the private sector.
"Private enterprises generate jobs but we find it difficult to get loans," he explained. "State-owned enterprises enjoy monopoly and have easier access to capital and resources so they make easy profits. We need equal treatment."
Huang Youyi, a senior editor in a state-run publishing house, likes Xi's background. "Xi is of my age, he also spent years in the countryside as an educated youth, just like me," he said. "At least he knows the real situation then and now."
And Xi's new team? "It's a team of doers," Huang added. "They are quite confident but they also face huge challenges."
Many challenges demand urgent solutions: a slowdown in economic growth, rising joblessness, growing rich-poor divide, rampant corruption, environmental and pollution problems, public discontent and sharp social tension.
On top of these, Xi has to manage a rising China and a surge in nationalism that is pushing China in confrontation with Japan and other neighbors.
All these are causing political, social and economic tensions.
Xi cannot afford put big decisions on hold, analysts said.
"The rising tide of mass resentment, emboldened by social media and ubiquitous communications, and the political scandals of 2012, all combined with Xi's sense and vision to give him a power surge," said China-watcher Robert Lawrence Kuhn.
"He has surprising credibility and abundant political capital. If he is serious about tackling China's entrenched problems, he will need to spend that political capital."
How Xi handle these issues will set the tone for China's 1.3 billion people --and for the entire world.