First time users.... first to provide feedback
I work as an IT consultant...so that means that I'm a major geek :)
I love testing things out, identifying potential defects for the purpose of providing the feedback so that fixes can be outputed.
So the fact that apple is having to pull and provide updates is not a major concern, since no matter the level of testing that you perform, once things roll out and the rubber meets the road, you will find some hurdles at the beginning.
I think companies appreciate when users provide the feedback so that they can make things better, and I don't see this as a frustrating process, but a way that leads to greater improvements