I guess I will get burned at the steak for saying this, but after reading an checking out the AZBox it just reminds me of a Cloned Dreambox. From the pic's I saw it's even laid out like a Dreambox on the inside. That being said instead of buying a model of the Real Thing just get a Dreambox. (JK)
I have a 7020 and a couple of 500s and personally they're the cat's meow as far as I am concerned. Can be a little difficult to learn at first and can be a little picky as to what is connected to them. IMHO it's the best open source receiver on the market. I am not talking about those cheap clones but real Dreamboxes! I have used the DMM image and Pli images and love the networking, streaming and the many things you can do with those boxes.
Guys don't take me wrong I am sure the AZbox is a wonderful receiver and works very well. It offers a few things a Dream doesn't and it is what it is.
I just like the Dreamboxes and that's all..kind of like arms pits everyone has their own opinions...Nothing personal