Simply put, my summer in Kunming was both intellectually challenging and an overall memorable experience. I truly appreciate the dedication that the program staff, teachers, students and Chinese roommates had to the success and progress of every student. Perhaps the highlight of the summer is the language pledge, which is both exhausting but rewarding by the completion of the program. For anyone who is dedicated and determined to become fluent (or at least proficient) in Mandarin Chinese, the intensive program is the perfect way to do so. The Kunming staff are exceptional. Alex especially was very helpful in helping students feel welcomed in Kunming, as well as very involved with our lives and studies.
In regards to life in Kunming, the weather is pleasant, though be prepared for lots of rain! Compared to Northern parts of China, it's definitely much nicer weather-wise. The dorms are part of Yunnan University's "Hotel," so unless you request it, there are staff who come in and clean/straighten up your room on a daily basis. I also fell in love with Yunnan cuisine, and there are plenty of cheap options on and around campus. You also can dine at the campus cafeteria, which is both cheap and decent, though meals can be a bit repetitive.
Your roommate is the best resource for integrating into Chinese life, picking up some recent slang, discovering Kunming and learning of China's rich ethnic and linguistic diversity. My roommate in particular was not a Kunming native, so I got to learn about her experience in learning about Kunming.
Finally, Kunming has its own local dialect! I highly recommend interacting with as many locals as possible, and maybe pick up some of the dialect. Though the academics are challenging and the language barrier is perhaps a bit higher than other parts of China, I would definitely recommend this program to anyone who is willing to dedicate themselves to Mandarin Chinese and Chinese culture and challenge their current self to a new experience.