Out of 132, Phnom Penh is 125th

Of the 132 cities surveyed, only nine cities present the worst-case scenario in which most aspects of living quality are severely restricted, reflecting general improvements on a global scale in areas such as education, health care and infrastructure. Four of these are in Asia, mainly South Asia. The other five are in Africa (accounting for three) and the Middle East (accounting for two).

The threat of terrorism and civil unrest is a major contributing factor to the cities that suffer from the worst liveability scores, as are poor development indicators. (Source)

Well I wouldn't be quite that harsh, but Phnom Penh does have elements that are very frustrating: noise, pollution, motos and the hot weather in April that just saps your will to live. If you ignore the racism, sexism and political corruption though, the Penh does have its charms for those who can afford them.

The thing about surveys like this is that they are generally written by people staying at four star hotels and who are being chauffeured everywhere in air conditioned land rovers. Do they eat the 2000 riel noodles or take a moto from one end of the city to another? How can they possibly evaluate a city under such conditions?