Wouldn't swap my summer for anything

Aupairia is a great company to go with if you want to gain international experience. I enjoyed the program as they organised weekly culture-classes and monthly trips to different famous destinations within Beijing. Also, there are 4 hours of Chinese-classes a week, and trust me, learning a couple simple phrases will get you far in China.
I also got to explore so many places in Beijing such as galleries, museums and temples. If you go buy a Beijing guidebook, be a nerd.
Only thing I disliked was the kid (but mine was a trouble-maker and they're not all like that).
Overall a brilliant 3 months!