I have been out of the scene for a while and I'm looking to upgrade my AVIC Z3 head unit. Can I get some reviews and comments on this unit before I spend a lot of coin? Are there any reputable places to purchase at a good price too? Thanks! 

There's no difference between the 8200 and the 8201.  All they did was package a backup camera with the unit and market the box as 8201NEX.  The radio inside the box still says 8200NEX.  

That said, there's plenty of reviews on amazon, youtube etc... of the 8200NEX.  I love my 4200NEX, it's been a great workhorse.

I have an 8200 + Maestro and love everything. The only possible complaint I could have is the startup time and it's still only about 15 seconds but if I left it loud, the last 5 seconds of that is aloud audio waiting for the buttons to work to turn it down.

Minor complaint but overall great stereo and wouldnt trade it for Alpine or Kenwood. Either way though I think anything in that price category is a great radio to start with.

Thanks