I was just wondering, how effective is it really to sneak in this plus full Ebony? Im craving sneaky conjurer build and this is how im probably gonna do it.

From what I can remember, it worked pretty well if you're in full clunky heavy armour with a sneak skill in the negatives. It's not a replacement for a high sneak skill with perk points in that tree, but a big step up from walking around with a big neon sign pointing to your location all the time.

You'll also train your sneak skill more with this armour than you would otherwise because you keep trying to sneak.

It's good if you use the muffle spell or steed stone and invisibility. With the invisibility spell you'll just see the black smoke which is the only reason I like the Ebony mail.

It really looks sick if you play as a Volkihar vampire and don't wear a helmet. All you see is the cloud of black smoke and glowing eyes. Bad ass.