A good practice? Zend Framework Libraries in CI

[eluser]farinspace[/eluser]
I use Zend Framework all the time in CI, their libraries are very modular and I find them very easy to use within any system/framework (the libraries can be a little bulky at times) ... But good code is good code, its all on how you use it, if you use it poorly, then you'll have a poor app, simply put!