When does it really start?
I mean, I'm only lv29 now and I get excited each time I get a new skill unlocked or an item drops in a dungeon, but it seems like my level of relative power stays the same. I could take on groups of 3 at lv5 and can take on the same groups of 3 at 29 with blue/purple gear. I can still solo the bosses in delves and get my butt kicked by world bosses.
I like the level scaling, but do you ever feel more powerful? Does that start at the CP levels?