Therea are among the easier of the hobby roaches IMO. They just have a longer development time than some, though this is greatly sped up by warm temps and a protein rich diet.
I just started keeping them for the first time, and they're pretty neat. Definitely one of the more underappreciated "pest" species (I mean they're really all underappreciated except for P.americana).
Well Blatta orientalis are invasive, but if you mean house pests no, they tend to only infest sewers and other very moist areas around human habitation, rather than houses themselves.