If by"solid"you mean "likely to turn your computer into a brick." It's been two years since its official release and it still isn't stable. I say this having recently worked to try to develop a stable SOE for deployment. Each update release carries a non-negligible risk of breaking Microsoft's own environment standards. The forums are blowing up with screams from sysadmins trying to manage the OS but can't trust Microsoft's own technical support.
If by"solid"you mean "likely to turn your computer into a brick." It's been two years since its official release and it still isn't stable. I say this having recently worked to try to develop a stable SOE for deployment. Each update release carries a non-negligible risk of breaking Microsoft's own environment standards. The forums are blowing up with screams from sysadmins trying to manage the OS but can't trust Microsoft's own technical support.