From Singapore :)
I didn't meet Yun Ying and his wife during their stay, therefore I can't say something about their personality but I can say they left the apartment in good conditions after the short stay they spent in my apartment.
I had no to accept the booking since the first messages. they had many question and they were asking about many properties as they wanted a room with private bathroom and the price of one with shared bathroom. finally the choose for one with shared bathroom, ending up with complains. In my opinion guest Not Recommended.
Molto gentili e simpatici, ci hanno fatto davvero una buona impressione.
Yun Ying and Edwin are really great travellers. They speak a perfect english and love to discover the cities they are visiting, we met them very little due to busy schedules (work for us, and busy sightseeing for them!!) but they are really sweet, starting from the smooth and pleasant check in, through the kind notes we found when they left! Even as guests you could not ask for more: tidy clean and very respectful, you could rather notice to have people in your house!