The positives were that you actually had a home and the negative was that you had a part of the military. another positive was that you had to chance to cultivate the downside was that you had to give a set amount of your harvested crops to your duke/duchess or whoever owns said land. I hope this will give you some pros and cons to feudalism
He established a responsible government. He got rid of corrupt and no good administrators. He also changed the system of provincial administration so that all provincial governors were answerable to him!
I hope this helps !
agriculture, population, and organization pressure