For the trip from Phnom Penh to Bangkok, they left me at the Poipet station for over an hour after taking everyone else on the bus to the border. Then they made me pay a moto taxi to take me to the border. Ended up getting to Bangkok 4 hours late.

The bus stop at Poipet where there is nothing and no indication. I should take a tuktuk to the border where there is no one who can help me. I waited 4hours there before crossing it and go to Thailand thanks to a customer from another company. Really bad

Departure 8pm, it is a lie. We left at 8:00am and we arrived at Bangkok at 4pm. The company don’t take care their customers.

This is the worst service that I have ever taken. I personally recommend you to think twice.

KSO was not great. Told me when I boarded of a non listed stop due to Thailand Immigration not being open until 7:30a. This added 5-6 hours to the trip. Then was unexpectedly transferred to another "bus" which ended up being a mini van. (van was nice)

I booked a KSO bus leaving at 8pm Phnom Penh to arrive at 8am at Bangkok. First, when I arrived none of the staff spoke English. Then, the bus, didn't have beds but hard seats, no blanket and was playing loud khmer music. The bus dropped me only at Poipe

Very punctual company

About KSO at poipet and Thailand KSO,your stuff is very terrible, at first, poipet stuff, he didn't check my passport clear, told me that I can go to Thailand, so let me to have problem until I go to Thailand , second, Thailand KSO,arranged seat very bad.