I spoke too soon earlier as I was very very frustrated after talking to a tech at Pioneer. He has since called back an apologized and I am less frustrated so let me take back what I said.
There are quite a few issues. I expect that from a first run early release of a product. What irked me was being told one of the errors was normal and that all of their nav units do this.
The error I am speaking of is the parking brake error where it is complaining that an error in wiring is detected. We get this in both cars every time we start driving. It comes up once and you click ok then you are ok till next time it restarts. This is annoying but can be lived with if they fix it. He was quick to dismiss me saying it is normal and all their nav units do it after I told my Z2 units did not do this. My parking brake wire is connected properly and even after this error you can still see the buttons become avail and go away when you put the brake on and off so its working. Anyways he managed to hang up on my after putting me on hold but later called and apologized and said I was right so I feel a bit better.
Other issues so far is some random reboots, one unit lost a few settings today for no reason, bluetooth isnt working too wel, and over all sluggishness of the entire interface. I expect they will have new firmware out soon though as I was told my the stereo shop today that they spoke to their rep and Pioneer is aware of these issues.
To sum it up I apologize for jumping right to saying I am going to return them. There are some issues but it will be working out shortly I am sure.
I will add that after playing with it more I do plan to replace the z2 in my truck with an F90 or F900 but I will probably wait to see some of these issues fixed first. I am installing an F90 in a Friend's truck in a few days as well.