I've had mine on for over a year. No problems its all I listen to. No hardware upgrades needed with the merger. You now just have option to choose different subscription packages.
I have the Harley XM module on my Ultra and love it—I would do it again without question. You can buy through Zannoti for maybe 20-25% off list … it is easy to install. The Harley module leaves no exposed wires, hookups, or rigging. On the road I just get off and walk away, no hassles and no theft issues, works with factory controls. I do a lot of road miles and the price of this module was worth it to me for convenience and permanent install. Like everything else, we buy what is important to us, and on the road I like my XM and easy hand controls. AS always--it is a personal decion if the cost is worth the return :-)
I've had one since I bought the bike in 06. I really like it but it does not have the volume the radio or cd does. I just had my radio swapped out for a refurb so maybe it will be better. I hope so anyway.
I have it and it works just fine. I had a handle bar mount on my previous ride and just being able to control the XM through my radio system handle bar controls is an improvement. Its costly but worth it in my opinion.