I prefer bun. I've employed 2 yan. One is super-stupid. Another is "smart" compared with other yan. However, they are, according to the standard of HK people, very stupid. They don't have any common sense!!!!!!! In short, if they know 1+2=3; they don't know 2+1=?. Moreover, they work slowly and the voice are very dull! In my conclusion, Yan is suitable for taking care of elderly; Bun is more suitable for taking care of kids. Anyway, depend on your luck! GOOD LUCK
my bun is an Ugrad student, so she always show me how smart she is, (it is true that her english is very good)
Once I mean to play the 邏輯推理遊戲 logical games with her (from some english newspaper), I got full mark and she only got 70%!!! ha ha ha.....this really SHOWS I am her MUM...