I think it's pretty neat that I can have my companion in a power armor without them using fusion cores. However, due to the shortcomings of companions combat AI, it doesn't take long before their power armor is shot to pieces. Especially if the fight involves any sort of explosives.

I can understand that they can't have invincible power armor, because that would just give you one "extra" set of power armor for when yours is destroyed. But I don't want to go back and repair it after two firefights all the time either. I'm thinking something along the line of taking only a 1/3 of normal durability damage while on a companion would help a lot.