This was a highly recommended receiver. Unfortunately, about 2 months after purchase and installation, my iPod input completely stopped working. Nothing shows up on the screen and options cannot be changed. All other inputs work as advertised. I had a bad experience speaking with both Best Buy Support and Marantz Support regarding my issue. I was told that this input ensures the highest bitrate to the receiver, and thus require this input to work. Support actually did not believe me, and it took over an hour before the case was "elevated" and I was told to send in my device. The National Service center cannot look at the incident report I created with Marantz Support, so I am using much more of my time to thoroughly explain the issue again. I understand that issues can always occur with products, but I do not expect such an expensive product to have such bad support. As for the performance of the product, it otherwise functioned as advertised. The higher power output allows my speakers to open up more than competitor products at the same volume output. I wonder if having a lower end receiver with external dedicated power would provide the same if not better results. Overall disappointed in the fabled Marantz Brand this time around.