Well, I own both, a Marantz 9200 and an Mx-500. These are, IMHO, the best remotes of their type and price point that are out there. The Harmony probably fits in here too, but I've never messed with one. Having said that, there's no way I'd give up my Pronto for an Mx-500 or even Mx-700. However, you got to like touchscreens (many people don't) and you've got to be willing to invest A LOT of time to get it programmed like you want.

The advantage is that the touchscreen can be customized more, and will always be more flexible than the hard button remote. Oh yeah, and the graphics are waaay more cool.

The drawback, takes lots of time to learn the software and create your masterpiece.

Jim L