This is permanent unlike the Chickhen/CFW loader method of running homebrew/backups. Which means you can fully shut the system down and you don't have to fight with it in order to get it to run. Be careful though because there are two versions of GEN floating around. One aimed specifically for the v3 motherboards and the other at the older versions of the console. If you use the wrong one you will brick your system.
Thanks for the news I've been waiting for its release.
You should now make the transition to GEN. GEN you can get only update from 5.03 M33 custom firmware. Do you some research and find out how. The Chickhen method is now far too outdated to play the latest games at this point.