Dirty industrial city? Then you probably didn't have enough time to look around. We have been living in Hefei for years and especially the last year it has become a lot prettier. From the Novotel you could directly walk into the city park, that runs almost entirely around the centre. The Novotel was indeed not the best hotel in the city. Do visit the temple of the city gods, with next to it an interesting antiques market. In the West, Shu Shan Mountain, are nice parks too, lakes. Compared to other cities in China Hefei was really a green city with almost no pollution.