My first post here!
I just wanted to say that I visited the Fortress some time ago, in July. I had never been with a dominatrix before, and I can say I felt safe the entire time going into the facility; it was assuring the security protocols that you all have in place!
Mistress Koi was the one who was dominating me that day, and I have to say I thoroughly had my mind blown. She tried things and did things to me I had always been curious about, but never did. The roleplay scene itself was fun, involving a too-nosy "boyfriend" finding a "secret closet" before she was ready...
I won't go into any more specifics, but I definitely had wobbly legs all the way to my car. Parts of my anatomy stung, sung, and tingled for hours (or days, for the stinging!) afterwards. I'll never forget the experience, and I feel compelled to return soon. It was absolutely wonderful.