Mine have been rock solid, I send them to a group of testers who use different OS and DAWs and give them a couple of weeks to play with it before I release.
I guess that the developer behind the project is as important as the platform used to develop. Do you think that your background as a programmer helps when developing in Hise? Personally, my background is more in sound and graphic design. My coding skills are low (but I'm working on it).