Yeah. I've never been bit by a roach before. It was surprisingly painful. They are really challenging to hold onto. It's worth it once though just to hear them squeak. It's the only time mine make noise.
The overcrowding wasn't too bad. I just had a few too many males in a small enclosure as there was some minor wing biting. Also, they don't (yet) group up the same way other roaches do. It's as if each one needs it own space. But my colony is still small, so that might change. From what I've read, this species takes quite awhile to "get going" and develop a full colony.
I think the gestation is longer. I would guess 4-5 months. As mentioned, I've had my adults for about a year and have only had 2 generations, yet the females are gravid constantly.