It's okay for a quick stop over, especially if you plan to be out and about for the whole day and only plan on sleeping. The smell of damp does get a bit nauseating at times. On the plus side, the bund and a lot of other attractions are a short walk away.
I chose the cheapest room which does not have window so it was quite suffocated. The facilities are old but still okay. Very close to Nanjing Road and quiet all day. Staffs are helpful with my luggages though they can not speak English.
Jinjiang Inn is just basic accomodations, but it is very convenient to Nanjing Road and to the subway. The property has wifi, but the security protocol used for connecting is so out of date that modern Linux, or Windows version 10 refused to connect to it.