I just sold a bundle that included an Asus TUSL2-C with an iPanel.
If you overclock and are concerned about temps and voltages, it comes in very handy. The (2) USB ports are nice too. The latest TUSL2-C bios has the iPanel auto update turned off. Leave it that way. You can check temps and voltages by pressing the front buttons. If you let it auto update, you'll get stuttering. Anyway, worked great for me.