I spent two hours trying to figure out the simple task of hiding 4 bars when not in caster form.
This was something that took 2 clicks the old way.
Experimenting to figure out how things work generate a lot of errors (Interface\AddOns\TrinityBars\TrinityBars.lua:212: attempt to concatenate field '?' (a nil value).
Once you see that error the bar associated with it is nuked. There is no fixing it other than going into the WTF dir and blowing configuration files so Trinity will revert to initial settings (I know you can ctrl-alt-shift click but that makes the bars worthless unless you can understand this cryptic header system).
The crowning moment that determined I was in over my head:
http://reconstructed.us/error.jpg
Also, would you be willing to add a way to toggle the minimap button?
