Works OK for me.....
A elderly but sane German friend complained to me today about "Ryanair's cheap software" which "didn't recognise" his VISA card and I tried it for him - sure enuff it bombed out at payment stage. I searched and booked on my VISA and it went thru perfectly. Given when the booking process failed, I suspect he didn't know his EXACT card billing address.
Comment: It's always easier to blame Ryanair for everything rather than looking for the truth.
As for joking about Ryanair crew "buying their licenses on E-Bay", I wish the other airline crews flying into my local airport were as professional and competent as Ryanair are.
RaF (15 Ryanair flights so far this year and not a single complaint - except for the drunken German SLF's in the seats behind me).