I did that. Doesn’t make any difference. You’ll currently pay for it one way or another - either upfront or through your net salary. To be honest I don’t regret joining for one second.
Do you know if the option to have type rating cost taken from net salary is available to SO’s and FO’s applying for their first airline job at easyJet? I will be starting an integrated ATPL next year so trying to find the most cost effective way of getting my first type rating (currently RYR sponsored type rating seems to be the way to be the most likely option)