Bus left late. No WC on bus even though advertised. Staff rude, forced me to change seat, my girlfriend was desperate for toilet (has medical condition) they refused to let her off for toilet even though bus was stopped to let new passengers on. More people on bus than seats, people sitting in aisles and being forced out of seats to accommodate others. Man asleep on floor next to my girlfriend's seat. Woman being sick into plastic bag behind me, she went to front of bus to ask to stop to be sick the bus continued until designated toilet stop was reached. Sometimes 7 hours until next toilet break. We were forced to change to another bus about 2 hours before we got to Hanoi which had limited seating, I had to move equipment off a seat so I could have a seat but gave me little room as equipment was still right next to me. We arrived 1.5 hours later than expected due to bus stopping to deliver packages and pick up excess passengers. Will advise anyone planning to travel from Luang Prabang to Hanoi to avoid this bus service at all costs.