Need to fix the overly fast leveling - maybe dropping XP gained for every quest and enemy killed by 5 to 10% Also raise level cap to 32 (1 more Perk).
If there was no cap, I'm sure I could reach level 40, and that is without using the Fast Learner perk at all.
Ideally, the game would have (relatively) easy levels at start, slower gains at higher levels - the leveling XP needed shows some of this trend - http://fallout.wikia.com/wiki/Leveling, but in actual gameplay it is still too fast at mid to high level. Main problem is reaching the cap with a LOT of game still left to play - it drops some of the incentive to continue playing
