Answered by Curt Schatz from USA / China | Aug. 21, 2019 04:58
Guiyang is the capital of Guizhou province so it is, technically, a first tier city.
The Namning district is (mostly) the city center. I have lived here for a decade, and can attest that it is a pleasant place to live. It has plenty of shopping, restaurants, parks, etc. It's public transit is often crowded, but is easy to navigate and inexpensive. If you are young, I'm told the nightlife is entertaining. Other districts are pleasant, too, but if you are working in the city center, you will want to live in the Namning district.