I have been flying Edelweiss Air twice since last year from Zurich airport and I have never had any problems of any kind. The staff were friendly and efficient the flights were on time and the aircraft (A320) were clean and modern. Two weeks ago I flew ZRH-JMK (Mykonos) in Comfort Class. You just have to pay an additional fee of CHF 100.- one way and you can sit at rows 1 to 3 - the service is better and you don't have to pay for alcoholic beverages. To my opinion Edelweiss Air is an excellent airline considering the fact that it is a charter airline.