My largest 'wow' moment was probably today. I restarted and have been focusing on Smithing and Enchanting, but today was the first time everything came together. My Barbaric Orc has been using a steel battleaxe from the very beginning of the game, the same one.
Today, though, I was able to upgrade them to exquisite, and then I enchanted for the first time with him (I had only been disenchanting up to this point because of a lack of soul gems). I got 2 items with +18% two-handed attacks and 2 items with +12% two-handed attacks. I was amazed, to say the least. I used berserk and easily killed off two giants at level 15... the mammoths got me, though, before I could heal, because I was making sure Lydia was alright and didn't see them coming.
I now do more than my berserked self did when I first got the weapon, with a regular attack. I need to go see the greybeards soon, I was in Ivarstead, but got distracted... about 20 quests ago, lol.