I had nothing but problems with my 5x1 from Monoprice with the PS3 would not work on any port (not even port 5 like they claim), LG upconvert DVD player had colors all screwed up when hooked through switch, RCA upconvert would not work at all, just screen flicker when using switch, Philips DVD recorder with HDMI out would not work if I played a DVD, but would work if I was just watching the pass-thru video. No matter what I did, I got HDMI device errors, bad handshakes etc.
I figured it was a bad unit, but Monoprice refused to let me return/exchange it (after only 5 days of having it) and would not offer any advice other that "you must be doing something wrong, the device cannot be faulty". Yet if I took the switch out of the loop, everything worked teriffic.
My beef isn't with the switch, but with monoprice. I used to recommend them all the time, but they lost a customer when they treated me so poorly.
I ended up with the Satechi linked above and it works great.