Summary: I have hade this for just over a year and one of the HDMI ports has failed. It wasn't as these plugs were used very often, I set it up and this is how it remained until it failed. This otherwise had worked flawlessly and was very satisfied with the units sound and abilities. It has a 3 year warranty but a major inconvenience. Also there are very few certified dealers around, only one in this state.
Summary: I've had this now for around 8 months. First off, forget about the built-in music services, get a bluetooth receiver and connect it to the stereo inputs. The interface for Spotify is terrible. You can't que music with it and it is very easy to end your song without realizing it. It also has ONLY a search feature by name. No genre search or any other search like the smartphone apps have. So use your smartphone app and connect to this via a bluetooth receiver.
Summary: I have had this receiver for a couple of months now. I may end up taking it back or sending it into Marantz for repairs. I have had many issues with it. First, when using Sirius/XM radio with the built in network function I cannot get all of the stations to play all of the time. Not a huge deal, but somewhat annoying.