I picked this HU based on the RMS output but wish I had chosen something different. The menus can be a bit of a challenge to operate. Had to download full operators manual to figure out how to navigate the SiriusXM. Couldn't intuitively figure it out. I preferred my previous Sony, Alpine, and Pioneers over the Kenwood. This is my second Kenwood. Sound quality is okay, but my previous decks were much better, especially the Sony. I find that periodically menu navigation does not work, leaving me to remove the faceplate in order to power cycle to get function back. Bluetooth freezes often leaving me to again remove faceplate to power cycle off and on. I have a Blackberry Bold 9900 and it connects 95% of the time to the phone but only 10% of that the actual phone function/hands free works. When the phone rings and its "connected" I need the ability to answer and speak hands free. No point if the phone is connected but doesn't actually work. Very disappointing.