The quality of service is very good.

We took a day time sleeper bus with HM Happycar from Hoi An to Phong Nha. I received a WhatsApp message from the organizer to ensure we found the bus ok before departing. The bus was extremely clean and in great condition. The little bed capsules were private and lay totally flat, or you could put them into a partially reclined position. I am 5'4" and could lay completely stretched out, my friend is 5'9" and could do the same with flexed feet. There was a USB port, lights and air vents. The driving felt very safe and there were two drivers who traded off which helped us feel safe as well. We stopped 3 times for toilet breaks. After getting dropped off and going about our day, we realized we forgot air buds on the bus. I messaged them via WhatsApp and they responded immediately that they would ask their cleaning staff. They found them and organised a nearby hostel for them to be dropped off at for us to pick up at our convenience. Very impressed overall, would book with them again.

The informations about pick up locations etc are a little approximative, I asked Vexere where we could get to the big bus directly and at the end the location was still a mini van pick up that brought us to the bus but that is not a big deal. We left on time from Hanoi but made a very long break at the airport to wait some passengers I guess and arrived only 30 minutes late in Sa Pa so very good. There is no WC in the bus so think about it but you’ll do two 30min breaks in freeway area (3k dong to use the bathroom and they are very clean) and will also be able to buy a lot of different snacks and food. Very confortable seats ! Keep in mind that sometimes the quality of the roads is not that good so it can be very shaky. We booked the top 2 seats at the very back of the bus and you can feel the bus vibrating a lot, the lower seats just before these seats were much more confortable and we were able to use them as they were empty. Overall a very good journey :)

The first time I went from Nghe An to Da Nang, I was a bit worried that the bus company was cheating me, but in reality it was very ok. The bus company was friendly, the operator called to confirm and remind me of the schedule to avoid missing the bus. 10 minutes before the bus arrived, both the driver and the operator called. All information about the license plate and the driver's phone number matched the email received. I kept the seat I booked for myself. The bed was spacious and comfortable, the bus ran smoothly and had no smell, and I arrived in Da Nang almost 1 hour earlier than the scheduled time. 10 points, next time I need to choose this bus company to go from Vinh <-> Da Nang

Bus quite nice, but didnt have pillow, didnt get assigned seats, and was more than 1 hour late, but that didbt matter because of good driving, nice staff, and quiet atmosphere to sleep! Overall happy as i was able to sleep well!

We should really support good bus companies like Khanh Quynh, from the attitude of the drivers, staff to the facilities of the bus. The buses are new and very clean. I just hope that Vietnamese passengers will travel in a more civilized manner.

Good feeling. 5 stars. However, the bus runs slower than the purchased ticket; should set a distance or time for passengers to clean up better instead of stopping when individual passengers request; the shuttle bus should serve faster and not keep passengers waiting.

New car, I went on the Quy Nhon -> Da Nang trip and it was very comfortable. The shuttle bus picked up and dropped off at both QN and DN. The car company is new but I don't know why I saw many low reviews so I was hesitant when I bought the ticket, but after the trip I found it great. All the staff were friendly and enthusiastic. Text the co-driver if you want to go to the toilet and he happily stopped the car at the nearest gas station so my family could get off!! Other cars sometimes grimaced and cursed lightly :) New car, strong air conditioner, clean. I don't understand why there are many low reviews? Everyone please support me, I went from Quy Nhon to Da Nang and the whole car had 7 passengers, it was pitiful. Wish Tan Quang Dung success.