Originally Posted by HungryHunter

I never did grind for exp. Figured that comes naturally. Only used Dailies to grind for cash and manyus. During events, if I find a mission with lots of life crystals and high chance of dropping it, I grind that map.

Well, EXP is useful for leveling to increase max stamina (especially important at lower levels where going to work/school/etc. means you end up wasting stamina regen because your max is too low. At high levels it's more or less just a free refill with a slight boost to max stamina (and every 10 levels past 100 gives a FL slot up to 150 I believe)

As for Life Crystals, Event Map ?-4 and ?-8 is almost always the best for those