With one of the recent patches the amount of experience from a DoL leve quest is nearly double what it was previously. level 45 leves were close to 45k base experience.

It's much easier to level bot or miner now so don't be deterred. Took me 7 leves from 49 to 50 which is about 30 minutes.

I recently picked up the alc 15 ability and it's one of the best cross class abilities. I suggest it to anyone looking to max out their crafting potential.