If you use your XBox 360 to watch DVDs, I definitely recommend taking look at this remote. It makes moving through your DVD easy and "normal".
Yes, you can use the standard controller to access the DVD menu items - but it's a royal pain to move through the various menus and sub-menus to get to some of the items. Also, it's not very intuitive for non gamers to page through to the items.
In comparison, this controller is incredible easy. it looks like and acts like any other TV remove. You have the standard buttons that everybody knows how to use - play, pause, fast forward, rewind. If someone walks into the room, you don't have to page through a menu quickly - you just hit the pause button.
The controller is a nice size, too - large, easy to use buttons.
Yes, we have a wireless Xbox regular controller - we like to have a fully wireless living room. So it's not that we gain "wireless control" that we didn't have before. Really, though, with all the various DVDs we watch, it is so nice to be able to hit those control buttons to have the DVD do exactly what you need.
This is especially true with exercise videos where you're moving to specific scenes and segments, not just watching something through in a stream from start to finish. The easy-access buttons are definitely key there.