Very cool character, in design and lore. I think she fits in just fine with the Maiden and Trooper universe. I also like the perspective expressed in this wording: "The Baroness Redan joins the battle against the invaders of her homeland".
My only disappointment is with the event exclusivity. I've been waiting for a month to open my 60+ Heroic Souls on 10/1 for a chance at Edward the Great. But, now I will likely just have to hold them longer for a chance at the Baroness (since Edward is obtainable via normal souls). Kind of a bummer, as I was really, really looking forward to 10/1.