Siagon Advenure Online tour operator and guides were very accommodating to my dietary needs -- I do not eat port or drink alcohol. So they adjusted the food for me.
The guides/scooter drivers -- Jade, Long, Ruby, Auh, Jessica -- were all amazing.
Jade was my driver and I felt safe.
Learn how to eat Vietnamese food (proper way).
Recommend tourists come with an empty (or near empty) stomach. I didn't so, am paying the price for it. :-)