Hi Leigh and Welcome!
This forum saved me from ordering ipod and bassworks!
Being able to adjust the amp is a bonus, but I still don´t think it would be worth the money. Every-one seems disapointed.
I am going for aftermarket stuff. Havent quite decided how much though yet. Will start with front speaker upgrade.
For example see this:
[HOW TO] Make the Bassworks system sound reasonable..
There are many other threads on this too, see here:
New car buyer sound equip options
There are some aftermarket installations examples in the Wiki I think, if not you should be able to find them in the ICE section.
There are no 8th Generation Civic brackets that we know of yet.
Good luck and enjoy the wait!