Recently flew out to Crete with Viking. Flights were on time, reasonably comfortable (bearing in mind i'm 6 foot 3" so tend not to expect much leg room any way) with friendly staff. Only complaint would be that the catering trolley took an age to get down the isle on the way back and most items were out of stock, but I beleive this was due to a problem with the Greek caterering company at Heraklion.
If you're expecting more than getting to your destination on time with your baggage intact then don't fly budget.