The house was cosy and comfortable. The host family were very kind. And the community was quite nice. The commuication was also convenient. The host wrote a specific introduction of the house, the environment, the food etc. I felt so familliar with the community after read the host's tips - though this was my first trip to London. The host family also gave me surprise - they prepared useful Atlas of London and 55 ways of visiting London from Time Out's editors' recommendation. So I should say thanks to the host family and I will come back in future : )