Now onto my thoughts of her in game:
She is a complete workhorse for me now, and a must have for my Viktoria crew. Essentially she has armor 1 with a counterspell and nether flux aura - this strips models of their built in suits when targeting her or if the attack originates from within 4". This is huge as models with lure essentially are rendered useless unless they can use soul stones, and for masters who need triggers they'll have to be spending precious resources to accommodate this if they can't flip the suit they need. This is huge as with my Vik crew I try to soak up as many resources as possible in the turn they strike so that the rest of the crew has an easy job of dismantling them.
The other main reason I use her for with the Viks is her size. I mean, she's a huge model in terms of physical area. But in the game she's also a height 3 50mm base. This means she can do a great job at blocing LOS to parts of the crew, namely the Viktorias themselves. Lately what I've done is on turn one she walks twice up 10" toward the center of the board. Then the student of conflict and Viktorias walk directly behind her and get blocked LOS for the most part from shooting. Anyone trying to do blasts on Hannah will lose suits so hopefully won't get triggers, but in the end any damage that gets through to the sisters will get healed up once Blood goes on her rampage. On turn two essentially anything important will be in range of the Viks' swords and Blood goes nuts. That one turn of denial is crucial, as well as the fact that she's no slouch in combat and can camp on an objective like Turf War or Squatter's Rights.
I've also utilized her to hug onto models with her 3" reach. In one game I had her set up next to an objective with the Student about 3" behind her and Vik of Ashes next to her. Hannah had a hard target engaged with her. Ashes would just charge in with her 3AP and put some hurt on a model or kill it, then the Student would teleport her back to safety. Hannah remained there to make sure that anyone trying to go after the Master would have to go through her first, all while in the Aura of her denial game. If Vik of Ashes needed to go do something elsewhere, the Student was there to hand out Fast.
Her other attributes aren't as useful in the Viktoria crew, but definitely handy for certain situations. With my current build of the list her (0) ability isn't used as often as there aren't any (1)AP CA actions that she can use from her own crew. It all depends on what the opponent brings to the table for her to utilize them, although it's usually something handy that they don't want to be used against them. At one game I used Jack Daw's own attack and flipped the Red Joker for 6 damage! All with a (0) ability!
Her Ghost Censor attack also isn't used as well as it could in my Vik crew. I tend to bring about 5 SS to a game, and lately I've lowered it to 4. 5 Tends to be the sweet spot, but when I have 4 I gain an extra model to the crew, so it's situational but 4 SS seems really light in the game. It's crucial when I bring 4 that I get the alpha strike to diminish my handicap as much as possible. But with a smaller SS pool I have to depend on my control hand for any cards I want to use, and I tend to use most of my resources for the Vik of Blood Whirlwind on turn 2, so using a SS for a tome doesn't go very high in priority, and any high tome will get used on Vik of Blood for severe damage or Defense Duels. I have realized however that I can have the same number of models in my crew (8) with 5 SS in the pool if I switch out the Ronin for the Freikorpsmann, then Hannah can use his "Reference the Field Guide" ability for Tomes if I have a low Tome card. He's a solid model for both Melee and Shooting, I just like the Ronin's model as well as her ability to hit and run models with Armor, not to mention having more wounds and Hard to Kill. Really though the resources used for Ghost Censor to get the trigger aren't worth it most of the time just to make a model or two take Horror Duels. If I flip the tome then it's good, as it may absorb the opponent's control hand by one or two cards at most, but usually in the turn she's going after the Viks and doesn't need to soak those resources by then as much, and the SS or card used doesn't come out with a net gain if they flip what they need.
I also no longer buy her Ancient Tomes upgrade when she's with the Viks, as it also requires a resource for the spell to take place. While burying a potential threat does come in handy, I've found that spending the resource for the ability tends to get wasted as that is something the opponent will definitely use their control hand to prevent for, so I'd have to luck out and drain all their resources and hope for a bad flip if I need for it to work out. This tends to not be worth the 2 SS for the upgrade, as I'd have to do it almost every turn for it to work out and I'd rather just kill the model with my AP rather than risk the chance of it not doing anything.
She does however come into her own even more when fielded with other casters, notably with Von Schill. Normally she can't use her "Make a New Entry" (0) ability with friendly Masters unless they have the Freikorps characteristic. When used with Von Schill she can not only use his (1) CA abilities she can also use his (0) abilities, making her utility much more useful. With his upgrade allowing models in his aura to use two different (0) abilities she becomes a tool box for a lot of situations and can even heal up all her damage at the same time (when the Librarian or Steam Trunk are in play). This is why I've recently purchased the Freikorps box as another Outcast crew I can use. They seem to be a simple box to play, and can fill a gap for when my Vik crew isn't suited for the Strats/Schemes flipped - for example, if I need a crew with high WP or resilience over damage output.
All in all she's been a welcome addition to the crew. I've had a lot more success since I've substituted her over Killjoy. She's cheaper and does more for the crew than he did, along with adding an activation for me since Killjoy starts out buried. Due to her flexibility she tends to go well with any master and is one of the few models I'd pay the Mercenary tax for with other masters.
Plus she has a frickin' steampunk robot suit, who wouldn't want to field that?!