I didn't message Yin from the airport, because I thought that I would arrive on time. I lost my way, though, and arrived late, but Yin was still around to open the door for me. The way between the metro and the place isn't straight forward, but Yin's description is well enough to find the place. It's hard to find the right exit, when arriving with the Airport Express, but it was entirely my fault to get lost, since I didn't keep looking. Yin was very busy during my stay, but she still made sure that I was comfortable.