Online checkin: checkin is not any more at the airport to a switch, you have already printed out your boarding card at home over the Internet.
Hand-baggage: of course you can take hand-baggage - in this case the weight not more than 10 kg and the size 55 x 40 x 20 cm. If you have normal baggage, like a large suitcase, the flight is much more expensive, and your advantage of a low-cost airline is away.
PRIORITY BOARDING costs 5 € in addition and is recommended!
You get more then a window seat.
You get more then a window seat.
Travel insurance: You do not need because of the low price.
Kalixa Prepaid-MasterCard: if you use a Prepaid-MasterCard to book RYANAIR online, it is without charge. For example Kalixa offeres a free Prepaid-MasterCard, you can easily book Ryanair for € zero.