Personally recommend home. Because when I went to Nanjing, I lived at home opposite the Confucius Temple. Because it is a chain, it is basically the same everywhere, and the amount of staying for one night is similar. If you want to make it cheaper, see if there is a 7-day chain, so booking online in advance may have a discount. Of course, it depends on the distance. Being close to Nanjing Institute of Technology is of course the first choice, because the closer the interview is, the better, in case unplanned events disrupt the day's itinerary. Finally, I wish you a pleasant journey!

O(∩_∩)O~