Well generating in a single click sure is gonna help you gain some time :p been in level design hell recently especially since i didn't even try auto tile untill after having to design levels for a project. Still have no idea how anything procedural can work though XD seen a bunch of tutorials and it seems a bit beyond my level for now, so good on you that you know how to do this ^^
Well, it's still just basic stuff, not like No Man's Sky... :D
I'm following this tutorial by HeartBeast, and this one by GDQuest. Generating the levels isn't the hardest part, that's adding the doors and keys and enemies in a way that makes sense - I'm still struggling with this one... :D