The location is really good (close to the red hill/hong shan); staff is friendly enough and speaks a bit English; atmosphere wise it's not really great (quite dirty and dark), but for sleeping there it is enough.
Some of the staff were very friendly and helped me a lot with finding my way around the city. I loved the Loft Café and the toilets were very clean!
Staff was very friendly. I was in Kunming during the coldest days of January - since the Hostel did not have heaters and the windows could not be closed properly, everyone was freezing terribly during the night.