I have visited Vietnam with Ama Journey Asia. The trip lasted two weeks and covered the northern, central and southern parts of the country.
We had two internal flights. In each part of the country, we had a guide from this region. They was waiting for us at the airport. The tour plan included the most important places in Vietnam.
Everything was perfectly organized. Ama Journey booked high-class hotels for us. Meals including local dishes were in very good restaurants. Whole trip was perfectly organized.
I recommend this travel agency if you want to spend a quiet and amazing holiday in Vietnam.