It seems like you're a solo/lowman player like me who mostly levels off leves. Good to see I'm not the only one.

I think if you did 3* leves, which put mobs right at your level and used Guardians Aspect, you'd get decent exp off of them. With the new combo system it should actually be easier to kill monsters and get the necessary chains you need to get good exp. I have to mess around more to see, this is Day 1 so it's hard to tell.

Also, don't forget to try the improved party search feature to look for exp parties. More people are actually using it!