Mrs W used Ryanair this summer to and from airports in France which aren't served by other carriers. This allowed us to have an extra long time over there at marginal cost aside from the flight so it was a no brainer. Flights were even cheaper than using an ID90 and all that entails. Flights were on time and no other issues as we carefully checked things off. I always add £40 to any fare shown to cover other costs and as a rule of thumb not too far out.
But here's how things are changing, when I see a route i.e MAN - PMI with other carriers then I look at them first and will willingly pay extra to be treated with a little respect. Ryanair remind me of Airtours holidays years ago.. Coffee and biscuits on Dan -Air and £13.84 airport taxes extra. When they scrapped this and improved the customer product they boomed.. Sure in time Ryanair will do the same.