It's fuckin jumbonious, but it's a life-saver because it has a USB hub on the back. I've got my Maschine, MPK25, and USB turntable connected to the hub. From the 4 inputs, I've got stereo from my Mac's headphone jack and stereo from the turntable.
I'd still need all those features in something new, but hopefully something that comes with ProTools.