In reply to KTS915.

Its interesting to hear negative feedback against the customizer, which I haven't come across before. What is it exactly that puts you both off from using it? Is it just one bad experience with a particular theme or have you tried with various themes?

As a user I love being able to see changes made to settings take effect immediately rather than on an admin screen far, far, away.

As a developer I'm excited by the potential to create some very cool features for themes and plugins. That's one of the reasons my development focus will be switching to more JavaScript development in the very near future.