Doing the the RyanAir mentored APS MCC course does not guarantee you an interview 100% , if you look at small print it states this or ask the school , if your goal is ryan air then id suggest to do the course but if not you can also apply with a basic mcc and the money saved could be used towards sim prep/interview prep..
ps id suggest looking at AFA in Ireland if you are planning to complete the aps mcc course as with AFA the mentored students have two chances at the interview in case you are unsuccessful the first attempt