I am level 31 and wearing T-60 unmodified Power Armor.
I just walked up to a Legendary Alpha Deathclaw and decimated it.
Then, while fighting it, Survivalist Raiders appeared and two of them had .50 caliber weapons. They shot me point blank and would take, maybe, 5% of my health bar.
I then stomped them and their buddies.
Power Armor takes all the joy out of the game. Even with top-tier weapons and top-tier (modded) combat armor the game still offers challenge from high enemies.
But with so many fusion cores (I have 60+) Power Armor is OP.
I hope a patch will either drastically reduce the number of cores to be found (so you can only use armor occasionally) or the defenses (not hitpoints but defenses) of the armor will be lowered.
My .02.