When I came across power armor early on I only used it occasionally for more speed and it would allow me to carry more but betting fusion cores was a pain so I went back to regular armor. I am level 31 now so should I be using power armor now as standard or does it really matter? Is it really required at higher levels?
There are advantages to using PA such as carry weight, speed, and of course armor. There is, of course, the issue of needing cores to power it. There are plenty of cores in the world but there are slightly less now due to them no longer dropping from certain mobs which made it easier to romp around in PA. Still, there should be enough cores available at higher levels to allow to play with PA on most of the time.