IMO the weekly is stable enough for everyday use. I have never had crashes/problems with the weekly rom.
My gf uses the stable rom. Sometimes her camera crashes and she has to reboot again. Also her 3g/4g isn't working well. The phone thinks she is international roaming. So everytime she uses 3g, a wild popup appears. Telling her to enable apps in the international roaming whitelist. The whitelist doesn't work. Also if the option is set to allow all apps to "international roam", it will revert. I'm think I will flash the weekly rom for her. (Can I dirty flash it? She won't be happy if she has to start all over again with a clean phone.)