Ho Chi Minh don't bother with resturants head to the central market after sunset loads of street food stalls ( with seating) spring up, food is great and cheap,
They also have KFC and McDonald's but why would you visit Asia for a Big Mac?
Beer is cheap in the bars and served by ladies dressed...
There is also a coach to Phnom peng it's called Mekon Express costs about 20USD it's a tourist only bus with armchair seats and a hostess to do the stuff at the border. Passport and the visa fee and it's so simple.
Cambodia is a great place to visit.
BUT remember if u are visiting Cambodia...