fa2fi--- broadly agree. I think Jet2 have positioned themselves quite cleverly, filled a few gaps. They've certainly made a difference to Leeds/Bradford. The reason I like them is that the fringe competitors are the heroes of the market system. They are the ones that keep the big boys honest. So I hope Jet2 survive and prosper. At their size they are not in a position to match EZY and RYR in the new purchase market. Nor do they have the year round baseline to their business the big boys do. So to me their business strategy makes a lot of sense provided there is a second hand market and the engineers can keep them going at acceptable cost.
As a passenger having flown them maybe twenty times I find their standards of service comparable to Easyjet which is fine for the markets they serve. My mate who commutes from Amsterdam reckons they are more reliable on that route than KLM. But I wouldn't fancy an 8 hour trip to New York on a Recaro seat myself!