I'm using both an 850 and a 900, just to try it out. the 900 works better with my system, as I do use my system for both music and video, the 850 was always a bit on the heavy side of stuff on screen. The Watch/Listen works better for me. I do miss the "Fav" page on the 850, but we should see that function available for the 900 & 950 here in the near future. I don't mind having less stuff on the LCD, in most cases, I wasn't using half of it anyway, so it just goes on a second page. I think both have legitimate uses. It really depends on your client and what they want.