Sheng's flat was spacious and clean. We visited with 2 adults (sisters) and 2 kids (12 & 13). We had plenty of room to spread out. The full kitchen is equipped well enough to prepare simple meals, and includes a variety of coffee makers, a toaster and toaster oven, a microwave and a variety of dishes.
There is a nice park just a block and a half away. Of note if you are driving in, (as is the case in all of SF) parking can be challenging, however we were able to get a spot just a block away near the park that was not timed, just keep an eye out for street cleaning days.
While I did not meet Sheng in person, she was kind and very responsive when we had questions. We would stay here again.