Looking at all the modules in Jetpack I feel I need more education, and start reading. So far so good. But worry about the end user trying to figure out what feature would be relevant for his/her site. Jetpack try to explain, but it's a lot of buzzwords and of "fantastic" things work.

What is the "Google+ Authorship Banner"? When and where is it seen? Is it annoying?
What is the "Google Maps Engine"? Something else than Google Maps?

"Infinite Scroll" has been just a disaster on any site, on any theme, I have tried it. Doesn't work and makes it impossible to go to the next page. Does this update mean that it now will work?

It's said that Jetpack is primarily for the end user. I regard myself a developer, and I love most of the features, but this is really hard to understand. Why should I need Twitter "card"? Never heard of it. What is the benefit? And so on.

I like the new module management under Settings, but the "Home" is far to big in height and covers more than my entire screen. Ridiculously high.

Is Jetpack aiming to be the new, big SEO plugin, taking over for AIOSEOP and WP SEO? I fear conflicts, problems for the end user, when SEO plugins also add Open Graph tags and other technologies related to social media.

Has Jetpack now become the advanced site developers toolkit, not "goodies" for the end user or common blogger?

Jepack is an options, not decisions hell. This is the opposite philosophy of WordPress core, and Matt Mullenweg is behind both. I still I love it for what it does, when it works. I makes WordPress a mature CMS for todays world and demands. The greatest plugin of all times. But I am worried.

I never have had any resource problems with Jetpack, but I am not using all the modules all the time, of course.