This is my charming vintage studio located on a 3 floor shophouse on Sukhumvit Soi 18, 5 mins walk from BTS Asoke. I just listed this property on AirBnB but if you want to see reviews from past guests and tenants you can check out "villageinthecity" on the internet. (I have been renting it as a long-term apartment prior to July 2017). I offer as an add-on a two hour experience in Thai culture and practical Bangkok orientation based on my 25 years of teaching and guide experience in Bangkok.
Both we and the neighbors on this very quiet soi do not welcome heavy partying and non-registered visitors in the rooms. In fact the latter are illegal. And no smoking please.