Rosa Eco bus took us from Hanoi to the Halong Bay. They turned up on time, the bus was very clean and comfortable. The guide, Jasmine was very kind and helpful. Before returning to Hanoi she texted us, to confirm that she is coming back to collect us. Excellent service:-)
At first I went away alone with my friends, i was quite nervous, but thank for the enthusiastic advice of employee, I feel very comfortable when they have to travel a long way, they always have the right program. made me feel good.
This experience only has a few reviews, but you can read what other travellers have to say about the operator.