Lauda Air in Europe runs some routes for Ryanair, including this CRL-ZAG.
Seat 13C is a paid-for aisle wing seat. While checking in, this was a 15 EUR update. When you select a seat, you don’t get priority access. The seat has quite a lot of space, although the head rest was a bit uncomfortable. The workaround was just to lay lower a centimeter or two and it was OK.
Payments aboard are possible only with credit cards or with mobile phones.
They don’t clean the airplane between the flights – as soon as we deboarded, there was a queue of people entering.