Under Three Hours and ...

Kelnix is half way to 58. The rested exp really helped I'm sure but I blasted through several quests that gave almost a bub per completion.

If you haven't check out Jame's Alliance Leveling Guide. It really is great for quick leveling. I level a bit slower because I do some of the quests that sound like fun but only the ones that keep me in the same location. His guide helps me by keeping me organized in one general area.