I travel a lot, which means I fly at least 10 times a year. Ryanair has been the only service I've used for the past few years and I'll continue to use it. The staff is nice, the plane is clean and it's cheap. Usually I travel with hand luggage only and I've never had any problems - as long as you read the rules and stick to them, you'll be perfectly fine. I've seen everything while waiting in front of the gate - people who refuse to put their hand luggage into a box to check dimensions when the staff asks them too and then after they pay the fee, they do it and start yelling because they are not getting a refund, people with 3 suitcases instead of one, passengers with a very oversized bag and more. As somebody said: it's all your fault. It is stated clearly on the website what is allowed and what not. Ryanair is the best low fare airline out there, and also the cheapest one. They're almost always on time and cancelled flights are very, very, very rare. If you made a mistake, don't blame them.