Update: this component has been rotated out of my system.
I got a very cheap pre/pro to tide me over until the new Anthem AVM60 comes out. Supposedly January, but I'm not seeing it on their homepage, so perhaps it's been delayed.
The 975 has possibly the worst UI I've ever encountered, both the physical UI (remote and on-device buttons) and the on-screen UI. I also get horrible buzzing in my speakers from the HDMI out connection when I attempt to plug that into my TV. It's OK doing optical S/PDIF PCM from my old DVD player, and from my computer, but it's unusable for video. It's also nearly impossible to set the thing up without using the onscreen controls, so that took WAAAAY longer than it should have. Avoid this pre/pro. If it wasn't the only thing I have at the moment, I'd defenestrate it.