As ever, it is most important to be aware of what you're buying (as buying a job it is).
In real terms, ryanair take home pay has almost halved since 2001. That's a massive rate of declining, which shows no signs of stopping.
At least one senior FO in Dublin (that's a rank no newbie will ever get, scrapped as it is) is delivering pizzas to supplement his meagre ryr income. This is an FO with many years experience let me reiterate.
There are now far more FO's than required. You will do nothing near 900 hrs p.a. Your ability to quickly move to a "better" job is reducing commensurate to the large number of FO's employed. Simply put, there are too many ryr pilots competing for jobs elsewhere. Ironically of course, your acceptance of pittance wages to begin with is undermining those airlines you may aspire to move to, thus further reducing your chances of moving on.
Given that you will be here for a long time and that your real wage will be ever declining, are you ready to live on the breadline for many many years? Remember its great fun to fly a shiny jet for about 6 months, then the reality of loan payments, rent, money of lifestyle starts to kick in. Sadly in ryr now, once the loans and rent is paid, there's nothing left over for lifestyle Thus is the reality of life as a low-cost pilot.
The only positive is that the pittance wages, allied with the reality that you face a long stay in ryr may force the newbies to be less apathetic and pathetic about the union than so many are at present.