I have been gambling on bitcoin for years now. The most stable and trustworthy one is unfortunately still primedice. Unfortunately because it means we lack innovation in bitcoin. I think I was expecting a lot more different gambling websites with a lot more competition but primedice still kicks ass comparing to most others.
I dunno, now we're on Primedice 3. So, if you ask me, even in the relatively small realm of dicing sites, there's been soem innovations from primedice 1, to 2, to 3.