Completely agree with Ryansf. I've only had one problem with Ryanair.
I was booked on an evening Ryanair flight to Krakow with my family - No airlines, at the time flew to Krakow from Manchester so we went from Liverpool. Upon being called to the gate for our departure we were told we had a two hour delay, in Polish (bearing in mind we were still at Liverpool). A Polish guy told all the English people what they were actually saying. After the two hour delay we were called to the gate again, the minutes/hours kept getting added and it turn out to be a five and a half hour delay.
Finally we were called to board, only to be told there was live animals on the runway at Krakow and we'd be going to Rzeszow
Anyway by the time we would have departed and actually arrived in Krakow wouldn't really have worth going. Ahh well! You pay peanuts, I suppose you can't expect first class service, although abit of communication goes a long way!
Ryanair, for me are great in getting me to Dublin/Shannon (the smaller routes) but I don't think i'd use them for a holiday.