I have to admit that I am surprised that Bethesda never patched in a cap for weapon, potion, enchantment or armor power.
Using a combination of enchantments and potions, it's hilarious how ridiculously overpowered you can get for even legendary difficulty. Every enemy goes down in one hit. Its great if you want a specific armor look.
My weapon power is over 1000 damage.
Each piece of light armor is approaching 100K
My enchantments make potions/smithing 2000+% more powerful, lockpicking, sneaking and pickpocketing 15000% easier. Not to mention a carrying capacity of over 10K.
For lockpicking I unlock Master locks without even moving the pin, I can sneak so well that I am never even seen when I am right up in front of the enemy. Pickpocketing though appears to be capped at 90%, so I still get caught from time to time.
Despite having all of this godlike power, I am enjoying myself immensely.
Oh and I am doing it without the use of any MODs for my PS4.
If you are not using the fortify restoration glitch, it takes a lot of time/gold to do that by abusing the fortify enchantment potion - fortify alchemy enchantment loop, so it is kind of fair I guess.
The fortify restoration glitch is fixed in the unofficial patch.