Trust me, it isn't. I should know, it was all outlined in detail to me at interview. you will e getting 4000 euros per month on average before tax.
Plus the fact that a very large part of your sallary consists of flight pay is a very bad thing, as when you go on holiday or are off sick your income will be severely reduced. Also, what are you going to do if they decide one month to give you hardly any hours? Which could quite easily happen.