Just upgrade the site to WordPress 3.5 “Elvin” and switched to the new Twenty twelve theme. I’m always impressed by the WordPress upgrade process. Quick, simple and reliable! Makes the whole WordPress experience, I don’t think I’ve ever had a problem upgrading.
By comparison, a few years ago I ran a Drupal based website ( I know it’s not a direct comparison), it often took days to complete an upgrade.
Anyway, looking forward to exploring WordPress 3.5 updates and the new media manager.