Decided to buy this product after investing in a Harmony Remote. I have to say for the price it does a pretty fantastic job. Incredibly easy to set up and use within a few minutes of installing. You will no longer be able to use a PS3 remote if you had one but all functions are duplicated on your harmony remote anyway.
The turn off, of the PS3, does take a little time but when you realize how complex that is to achieve on a PS3, ie what mode are you in; TV link, BluRay, Games etc, it is able to achieve the task every time. Sometimes you may wonder if it has failed however, patience for 10 to 20 seconds will turn off the system every time.
I would definitely recommend this product to anyone with a PS3 in their AV set up, providing you also use a Harmony remote of cource. It easily controls the whole system making it easy to configure BluRay playback or other PS3 media task.