I just finished setting up a custom game list with the menu hack. Adding scanlines is really nice, that feature should have been available without modding. With the scanlines the PS Classic's graphics look better than my original PS running through a HDMI upscaler.
The automatic BleemSync setup isn't as comprehensive as I hoped. Over half the games I added had to be configured manually. It's not difficult, just tedious and more time consuming than expected. BleemSync is very cool but will be that much better after more game info has been added to their online database.
The PS Classic is definitely better than I expected, however it will not replace my original hardware or even my RetroPie. I was hoping if it would satiate my desire for the PSIO but it has not.