Earnings are now closer to 8k (that includes about €400-450 allowances) plus a return from a kind of Fund for Interim Workers of about €450 per month, returned in two installments during the coming and next January, for example if you work this season you get half of it in January 2013 and the other in January 2014. With that it comes to about €8300 per month.
Rostering is indeed not commutable officially, but you always have 3 or 4 days OFF in a row, a total of 10-11 days a month. You can definitely commute within Europe if you want. I did it three times a month and I come from a distant part of the Continent, so it is doable
Overall, I did enjoy my time there. Aircraft, some of them actually brand new, they are very well looked after, not many flights in the really dark hours, nice & friendly crews
If I wasn't on a permanent job now, I would surely go back a few times.