I fly Premium Economy with them, where all drinks/premium meals are included, seats recline further, there's more leg room, entertainment is all free, and there's a full amenity kit provided, including ear phones, flight socks, eye mask, pillows and blankets - you can normally find return for £500-700 per adult. Highly highly recommend it if you can find it at a good price. It beats economy with Virgin or any other airline hands down.
I wouldn't fly Economy with them, as I don't like the idea of being packed in like sardines.