Yes it now works as a two-handed weapon. Unfortunately the physical damage done is still way, way too low for a non-improvable weapon.
The damage is low because the full powered enchant is powerful...
Powerful enough to make the sword almost viable past level 30. Almost.. on Adept..
It swings faster than any other two handed weapon...with it fully upgraded it absorbs 30pts health 1sec on each hit...and never needs recharging...
We are talking about this http://www.uesp.net/wiki/Skyrim:Ebony_Blade not the Ebony Greatsword.
I tried the Ebony Blade out the first time I got it, murdered all those trusting friends, was not impressed with it even fully charged, went back to a previous save and stuck it in a display case and have not bothered with it since. That is all any of my characters are going to be doing with it.
All unique weapons in skyrim svcks IMO only unique about them is their name
I have had it on full charge at Legendary and only useful on certain types of enemies, although it does look cool, i dont know if its my game thats glitched but the last time i had use of it all the enchantment had gone and i needed to start killing friends again>