I've been offered, as Captain, something like 9.5K Gross calculated with an average of 15 Days of work (the salary is made off a Basic + per diems). That's not one of the best salaries you can find, considering Iceland is not cheap, it's a gross figure (and you should pay some taxes in your Country as well. Yes, that's true, if you still have something linking you there like a House, a car, business etc.) and you can travel for free on their network only.
If you want to call a salary "above average", it should be higher than 7000-7500 Euros NET for 80 hours. Good T&C must include (at least) a good pension scheme (State pension + Additional Private scheme), if commuting, a good network if no staff travels are agreed with other airlines. If one of these factors is unsatisfactory, the salary must be even higher.