I'm a customer, like yourself so I don't speak for them, but my experience has been that support is amazing.
As long as you communicate clearly what you need to know, they seem to go to great lengths to support anything you need.
There is a Primer (maybe it's new since you last subscribed?) That has a ton of valuable information, especially at the 'just getting started' level. It's written in an easy to understand format.
Also, there are a bunch of CB tutorials on various subjects (usually with a simple walk through) that Nick put on YouTube.
YouTube channel:
www.youtube.com/user/Joomlapolis/videos
Also, most of us will check here regularly and help each other if we know the answers (and offer suggestions, even if we aren't 100% sure we understood - we try)
So, I think the support is enough for anyone with any level of experience, as long as they are sincerely willing to do the work required and to learn when pointed in the right direction.
Ultimately, if you are overwhelmed with anything technical, I don't believe any software with rich features (options) and so much power will be comfortable.
And, support is that, support. If you want to hire someone to install, setup, customize and manage that would be available on one of the 'hire a coder' type sites, or possibly by private arrangement with Joomlapolis. I doubt anyone here would walk you through every decision and option possible.
I hope that makes sense and was helpful.
Satchi