It is. It's quite straightforward to enchant a weapon with which you can lay waste to legions of enemies - 1 second duration AoE paralysis for example. Takes them a few seconds to get back up again.
Ultimately you need to limit yourself or it gets dull. Just using Umbra now I am having much more fun, the weapon damage is decent but the lack of magical damage makes combat last a lot longer. I deliberately don't carry soul gems so that when Umbra steals the soul there is nowhere to store it
