Hanoi to Ha Long trip. A driver contacted me through WhatsApp to coordinate my pick-up from my stay, then when we got to the office, I was transferred to the limo van and off we went, with a short 15-min roadside stop for restrooms and purchasing snacks. We left a little late but the whole trip still only took about 2 hours so I was happy with the efficiency.

I waited at the pick-up point indicated in the email, but it was a different location. The operator went out of his way to pick me up on foot. I was really touched by this action and they remained very friendly afterwards. I think this is a very reliable bus operator.