My played is 4 days 22 hours as of this moment (lv 52, 4x mage disc).

I've lost around 7-8 hours on afking ,respeccing testing things. Overall, it takes me around 2.5 per level and it will most likely stay that until lv 56 where ti will take around 3 hours until I hit 60.

The brd is tad bit scary due to melee damage so I gave up on Bael Gar gauntlent until 56 (new level and not to be crushed heavily by melee cleave).

The Zf grind was also super easy once I got to 46. Around 40k xp per hour or so. You can review my runs at my twitch streams and that should be the clue about the xp per hour more or less.