Received the PS2 to HDMI and a Wii to HDMI. Also grabbed a Wii today at CEX in an attempt to get the gamecube games looking their best.
Both devices stick out the back by quite a bit as mentioned in the vids etc but that's not an issue, certain it looks sharper. I think my RGB converter box was doing a good job as it looked pretty good. I wonder if that box would upscale this HDMI signal? Not sure but as it is, I'm happy! The old method I was using didn't completely fill the screen top and bottom but this does it nicely. Set it to 4:3 in the Wii settings and my screen. Screen detects it at 480i.
On the ps2 slim, the device covers the digital optical port or at least gets a bit close to it so the cable I was using there doesn't fit now, maybe I can get a smaller one and just about get it in.