It is a powerful tool, but it is light and easy to use.
It has enough features to allow you to get the job done, but it is not crowded to the point where you can't find the files for a specific plugin.
For Php / CodeIgniter fans is released under MIT Licences. Goodies included:
- Database, SQL script to build the schema
- ORM: Propel
- Authentication, Registration, Helpers
- License: MIT
- No hard dependencies. Easy deployment ;)
@Github sources released under MIT license [here]. Yours FREE!
Cheers & happy codding!