I read a lot on these pages about Ryanair, mostly bad. However, having flown with them probably about twenty or so times, I've never had a bad experience.
I don't pay much, so expectations are lower to begin with. If you're not careful, you might get caught out by the baggage allowance (only once if you have any sense) but this is explained clearly in the T's & C's so not really their fault. The food on board is pricey but you can bring your own. The crew are invariably efficient and friendly.
Now, I don't know about working for them but as a passenger, you certainly seem to get what you pay for.