Early morning departure to DUB with Aer Arann. Very disappointing promises of London City experience have not materialised. 5 flights all leaving at the same time caused total chaos pre-security totally disorganised boarding card checked 3 times for no reason. Not enough seats for everyone queues snaking everywhere. Business lounge not opened during this rush hour so nowhere to escape. One café which ran out of most of hot food tables dirty. Not a single cleaner in the terminal so all looked very tatty and dirty. No toilet paper in toilets. Staff running around like headless chicken. The only positive was arrival as there were no other flights off the plane in the car in 6 minutes.