There is no clear, well-oiled organization.
If other travel agencies will offer a ticket from the chord tour - Never agree! On the day of departure, the bus was late for 3 hours (only). The bus is old, scary, the air conditioner did not really work, it was stuffy, there was not enough space, in addition it crawled like a turtle (we have been going to Bulgaria for more than a year - there is something to compare with).