You do know what 'RC' means, right?
Probably doesn't, but the OP does say the team think this one is ok for production sites.
The main difficulties are likely to come in upgrading to RC2 and Final, because beginners won't be able to use Pacman for that. Mods/themes are likely to be a nuisance too. Which you would obviously know, but it's probably worth pointing out for some less experienced people.