I've been wanting to try this game for a long time, and I finally did. The 3D tag made me wary, considering I have a very old laptop, but the central Bath map loads quite well (the central London one tended to freeze my computer). Actually, the map is the biggest hurdle, the rest of the game worked just fine for me.
As for the learning curve, it's definitely there. I know because I just overcame it, but it's worth it. No game on this site comes close to this one, whith the possible exception of Artificial Academy 2. (I'm afraid I'm not a big fan of VNs.)
I'll write a review shortly, but in the meantime I just wanted to say hello, and encourage others to make the initial effort to learn how to play this game.
See you all around.