Orio al Serio is a nice airport there are no big problems apart parking area which is not very big and the fact that it is next to a motorway and so it is going to be hard to expand it. I've flown with bmibaby from there to Cardiff and found that security was ridiculous they did not look at the screens at all and simply went on chatting between themselves. It's true that the airport is mainly a "low cost airport" but terrorists don't make exceptions if they need to attack they attack. Handling services are good and are all provided by the SACBO Airport Authority it's very hard to lose luggage there. The staff is very helpful and young.