Hasdrubal
Historically Brookfield was just a bucket shop set up to avoid Ryanair having to pay social charges. Happily, this allowed many pilots to make vast sums of money without the inconvenience of having to give any of it to these pesky tax authorities.
Regretably this belle epoque appears to be ending, and now of course the Brookfield net encompasses a bit of Chinese take-away etc, therby lending an air of authenticity to the "we are really an agency not just a Ryanair serving vehicle" claim. It did exist before RYR of course, but was fairly moribund compared to Parc/Contractair etc, until that nice Mr Dooney had yet another inspired idea to add to the 50 quid c.v. charge
It's original raison d' etre though is rapidly eroding, and for the pilots any attraction of this employment method are long gone.
Nowadays if you are a legal "Brookie" I would imagine you are earning less (or certainly no more ) than a permanent employee, with no dosh if you are sick/not rostered, paying no social charges /therefore no benefits anywhere , unable to accurately predict a minimum monthly income, and with even less employment protection. All in all, what one could fairly claim to be a bum deal. The sooner this cancer is eradicated and Ryanair forced to employ everyone the better, but I suspect the Irish authorities are more interested in taking what they can and keeping Ryanair sweet, than enforcing any workers rights/charter.