Well, you will be in the range disadvantage when fighting with Barb, Druid, Jabber, etc. (Only if the zon and druid use shift clicking instead of mouse locking.)

Vs, Barb...Bah, which melee doesn't have disadvantage anyway?

It is great for Zealot vs Zealot, if you're into that.

Charge is the skill which you should seriously take weapon range into consideration.