Looks nice. . .I had one put in my MP3 before I picked it up. I think I paid $900 for it. . .not cheap but I love it.
I figured I might be the only MP3 with one (not like it matters). Maybe I'm at least the only MP3T with one. (laugh)
I have a Webasto unit. Have had zero problems with it, it is awesome. When you open it, a little deflector comes up and there is virtual no wind noise. I've got an forward and backward button like stock, and then two programmable buttons and a close. So, I can program however I want it to open in the two buttons and regardless of where, when I hit the close button it closes. Better yet, the thing closes when the car shuts off. Don't even have to worry about it. Just turn of the car and it closes 5 seconds later. If you want it to stay open just touch any key after you turn the car off.
This is one of the highly recommended mods I've done. . .but it wasn't cheap.