I booked a car to Mang Den and didn't have too many options. Even though the Phuong Thu bus I ordered is not very new, the car was cleaned and prepared very cleanly, the two drivers ran smoothly so it was easy to sleep.

Drivers and drivers are enthusiastic and polite. Check for enough passengers every time you get on and off a stop. Comfortable car (I took the car for 520k/ticket). The stop is relatively clean (I give it 7/10). The bus stops at about 2 stops for the whole trip, so if you urinate a lot, try not to drink a lot of water before departing. The departure time on the app will be different from reality, the morning of the departure day the bus company will call to schedule a time. You must arrive on time for the bus appointment.