I can’t exactly speak to the ISO integration. But, I did recently buy a new processor; a Marantz AV 8801 and I really like it a lot. The setup was the easiest of any receiver/processor I have ever owned. Also, there is a considerable amount of controls as well.
I would guess that that ISO integration would be really good as well.
Over the holidays I may see how the airplay works ect… I don’t have the receiver connected to my network at the house yet.. I may do that as well, and get back to you in a week or so.