Those are fanboy reviews. I'm on Teksavvy. The service is good but not that all perfect.
I have a different experience with IB. My approach is to get the UI layout done first in IB, and write the code without worrying about what is in the nib files. I just know the outlets are there. Also, when I notice I'm making lots of connections between elements and controllers, that gives me a clue that I decompose the UI further into more manageable parts.