Most people there are welcoming but the sprawls, sparseness between old villages and the lack of the true historic buildings doesn't help. The stylistic rebuilds of old places, remained since the Cultural Revolution definitely is a blight on cities green from villages.
The countryside and the hidden or well wandered areas away from cities are a godsend. Shangri-la, Kunming, Lhasa, etc have been rebuilt following convenient fires... but retain character. Actually, found most northern remote regions truly fascinating.