Review - partial. (EDITED!)
The device came with a locking HDMI cable (nice, I needed one), power supply and a mostly legible manual.
The locking cable locks into the box, a nice touch.
The manual has an error which makes me suspect it's accuracy. In one spot it says to set all switched off (down) position. Off is up. Stuff like that wastes my time, because I start question everything in the manual. You may know how this is. Or not
First I tried a default EDID setting via the DIP switches on the box. The Tivo would display an image, then lose it.
I tried programming it a few times with mixed results. The XBox 360 was happy, the PS3 would display nothing, and the Tivo would sometimes display and then stop.
Ok, I tried hooking it to the Tivo directly. This worked, but even with the preprogrammed setting that looked like it should have supported all audio, DD was not being sent.
I called tech support and left a callback number in case they had ideas.
In the meantime, I tried yet one more preprogrammed setting with the Gefen connected to the TV. It worked. I should point out that I actually made a mistake and set switch 4 to the on position rather than switch 3! And that matches nothing in the manual. Huh?
Ok, this is the deal. Read ALL the manual. You need to set switch 4 for HDCP!! Not having HDCP on would explain Tivo displaying an image only for a second, I think. I assume I am now using the programmed EDID rather than a preset.
So far all devices seem to display and hold the display and output proper audio. And, the reason I bought it to keep Tivo at the resolution I set, also seems to work. I can power cycle the TV and it will hold it's setting so far.
Another side benefit is that music does not interrupt when the TV is powered off, as expected.
I don't want to give this the MichaelJHuman seal of approval yet. I will do a follow up post after having it in the system for a week or two to ensure nothing is amiss.