Just wanted to post a warning for those just getting started in the game. BEWARE the "Pure Character Type"
I am maybe 120 hours into my first playthrough and I decided to pursue the "Thief Style" of play. I funneled all of my perk points into Archery, Sneak, Lockpicking and Pickpocketing. I was having a blast and enjoying the "Sniper" style of combat. I would Sneak into Bow range and then inflict massive damage. My henchperson would mop up the survivors.
Now I am lvl 31. My One-Handed, Light Armor and Restoration Skills are in the toilet and the game play is way out of whack.
This results in some pretty ridiculous situations like Pickpocketing an enemy's armor and weapons and then getting beat to death with their bare knuckles, while I guzzle Health potions and chip away at their ridiculous Health Bar. I've had to leave my henchperson behind as enemies will detect and attack her as I try and sneak in for an Assassin's Strike.
Just my two-cents. I am slogging my way through some dungeons using the Save option liberally and funneling every Training Dollar and Perk into Light Armor and One-Handed Weapons but it has certainly destroyed the experience.