I like Phnom Penh for the diversity of food available at good prices. For example, we ate at an Ethiopian restaurant here and it was about 14 USD. A similar spread cost us 45 USD in Tokyo. I like the Ethiopian bread injeera, it is like Dosa but more tangy.
I think there is a time in every mazor/capital city’s life when there is an interesting mix of immigrants and locals keen on trying new things, lax enough regulations, cheaper rental and staffing costs that encourages such experimentation. Phnom Penh and Saigon are like the Tokyo of 1980s.