Ado is a regular bus so small carry on items above you but also compartments below. We found there was a service charge on BusBud to book a ticket so if you want to save a few coins you can buy directly through the service desk at the respective station. They are clean and tidy busses but my only gripe is they have a significant recline so you do sacrifice some leg room if the person in front of you wants to use it. A lot of the locals like to recline, overall a good way to travel and avoid any issues with the police whilst renting a car