First review on David's service. David's profile is here: https://siamroads.com/david-tour-guide-hanoi/

My testimonial of David in Hanoi
I was with David Feb 2 thru the 6th

David is a very professional, knowledgeable, caring man with a great sense of humor. He made Halong Bay a unforgettable day.
David stays on top of everything and is sweet, caring, and a perfect guide.
I'll go back to Hanoi just to have David share more of his Vietnam with me.
David really made Vietnam come alive, he took me to some many interesting places and we were often the only tourist there. David's sensitivity to his culture made my experience of Vietnam so much more alive unique, alive, and energetic.

Thanks to David.