I'm not a hater either, in fact have been an apple fan and had apple products over many years.
True you can use Google maps in the browser and make a shortcut to the home screen, but it's not as fully functional as the old maps app, still losing you street view, and its still not got the same usability.
There are other reasonable updates in iOS 6, however in my opinion and for my useage (which is allowed to differ from yours) the maps are quite important. When you're paying the most for the most premium product why would you not expect the best, and to not have features you had before removed from you and/or made worse in an update.
I understand fully why apple would want to make the change to get revenue from the system for themselves, but it shouldn't have been released in the state it's in. I'm not saying the whole iOS is defunked, but rather an important app which people put a lot of trust in has been made purely not good enough.