Can I update the Farms 133 with WP Themes Update?

Hi,

WordPress Updates page in admin shows the ability to update all 133 themes in two clicks. The WPMU DEV Update page instructs to download and update via FTP. If I do the WP Update way, am I getting a WP.org version of the theme or the WPMU DEV version? Which is the better way?

I'm all for easy!
Thanks,
Chuck S.