When I visited Hanoi in January, I booked tours to Halong Bay and to Sapa through Paul and Ms Houng at Adventure Indochina. Based on my experience, I would highly recommend Adventure Indochina. When I was booking each of the tours, Paul and Ms Houng took the time to understand what I wanted and went through the options available to me. They gave me honest, genuine advice which helped me decide on the right trip for me. At no point did I ever feel under pressure to make a decision or even to book a tour. In terms of price, I did "shop around" and I found that the prices offered at Adventure Indochina were extremely competitive. As for the tours themselves, I was very happy. They lived up to the descriptions we`d heard and the pictures we`d seen back at the office.
I also booked an onwards bus ticket through Mr Hai at Adventure Indochina as I trusted them to get me the best price ticket and didn`t feel the need to go elsewhere.
Finally, it`s also worth noting that Paul gave me lots of advice about how to go about getting a visa for China. This was something that he didn`t have to do and there was nothing in it for him, but it was a great help to me.
In a nutshell, Adventure Indochina offers high quality tours at competitive prices, while consistenly providing a friendly, honest service.