My parents flew with this airline, and they actually didn't mind the lack of "luxuries". Actually, my dad claims to have been able to lie across 3 seats and sleep the entire flight! No one bothered him to ask which meal he needed, since none were provided. This was Copenhagen-Boston, round trip. Besides some minor delays, there was nothing at all wrong with flying with them. Remember, if you cut costs, you can't expect things to run 100% perfectly. Hopefully there is no hit upon safety, I think federal regulations prevent that.
Weigh your luggage at home: Avoid excess baggage charges by weighing your luggage at home and trying to stay under the weight limit (15 or 25 kilos per checked-in bag, depending on the airline). If you exceed the weight limit, you may be asked to pay 10-15E per extra kilo. If your luggage is overweight and you can't leave anything else at home, it may be a good idea for you to take a hand baggage. But be careful: you need to check the weight limits for your hand luggage too!