I ain't a Ryanair fan, nor do I fly with them, but full marks to their web site updates, advanced cancellations & links to volcano met charts etc
On this occassion, RYR have put the others to shame.
Couple of sets of friends away in different placers and spoke to them and they ended up going to airport, 1 a base and 1 non base to amend flights as already checked in. They were concerned about whether they get charged etc despite what website stating.
Got calls afterwards that at base airport it was a 10 minute queue and even though flights fully booked for a week they were asked would they fly out of airport 100km away from base to home airport if it were possible, they said yes but worried about extra car hire drop off fees so a hold put on tickets and lady walked with them to Hertz desk where car extended for extra days and Hertz persuaded not to charge the drop off charge. They impressed.
At non base it took 10 minutes in total and friends ended up asking "Is that it" as it was so easy.