When I have stayed the 4th floor of this hostel, shower rooms and rest rooms were closed due to constraction. So I had to go to the 1st floor. From about 10a.m. there was big noise of construction. And at night there was a restaurant and a music band played music till midnight (about 0:30am). So I did not want to stay there any more. And they seemed to not change the bed linen after check out. No towel. So If there was no construction I would have give 2.5.
Location is close to "The Bund", 2 minites by foot. But it takes about 15 minites from the nearest subway station by foot if you have a luggage.
Staffs can speak English well.
Big secure locker for each in the room.
And on 6th floor there is a bar.
Free Wifi (Not in the room, only the 1st floor and bar on the 6th floor.
So if you a late-night person and after construction, seldom walk to the nearest station by foot, and no bed linen exchange is OK, I recommend this hotel.