I didn't have any choice other than Ryanair when I lived in France, so I used them a lot. Mostly they were OK, although at one point it was so stupid that we were unzipping cases, shoving a handbag inside, going through check-in then unzipping cases again and extracting handbags!
I remember one flight where everyone in the queue started 'baa-ing'!
Shortly afterwards, the rules were relaxed - although I saw one hysterical woman sobbing when her bag didn't fit by about 1/4". Once, I bought a Magner's cider and was asked if would like ice. My response was, 'Only if it's free' - to which the attendant's response was 'Whatever you do, don't put that into his head!'
Flew EasyJet this Summer, by preference over Ryanair even though it cost a smidgeon more - worth it.