Just stay within their rules. Check all names are exactly as on passports etc,
Measure your hand luggage to ensure it complies but most importantly don't go one gram over the weight allowance for any checked luggage. They'll hammer you for it. If in doubt pay for another case to be checked in.
Like all airlines, on board snacks and drinks are overpriced so take your own.
If you want to sit together then pay for priority boarding otherwise it's in the lap of the gods.
Enjoy your break.
