Very Glitchy With Larger Rigs
I really wanted to like this interface, as there's nothing available that does what it offers. But there are some major snags that came to light quickly, as I got under the hood with this device. The iConnectMIDI4+ is presented as a device that seamlessly integrates 5-pin MIDI-based keyboards / sound modules, USB-MIDI, audio, and iOS. Perhaps this will happen in the future, but it definitely fell far short with my studio rig. I use three keyboards, four hardware sound modules, an iMac w/Logic Pro X, and an iPad Air 2.
The iConfig software appears capable, though I would've opted for a less engineer-oriented, more user-friendly / intuitive interface. Also, iConnectivity needs to ship these units with an 'empty' connection matrix; currently most of the DIN ports / USB ports are linked when the unit first boots. So MIDI feedback loops are a problem when setting up a larger rig. And even when I sorted out the connections there were still anomalies between a couple of my instruments and the iConnectMIDI4+ - weird audio artifacts, hung-up notes, etc.
The tech support staff at Sweetwater did a great job attempting to help sort out my issues with the iConnectMIDI4+. And Trevor at iConnectivity was helpful, even taking the time to create a Logic Pro X / iConnectMIDI4+ video. While I was able to set up a MIDI and USB routing scheme that worked for basic MIDI recordings, things quickly fell apart when I tried to integrate audio and iOS. When I followed the instructions for that, the iConfig software reset everything back to factory condition, and all of my routings disappeared. Then the software repeatedly attempted to reload the firmware, and kept hanging up on an error message. After three power down / power up cycles of my iMac and the iConnectMIDI4+ (including disconnecting / reconnecting all cables, as instructed by the documentation),and the same result, I was done with this venture.
Based on the videos presented by iConnectivity, I cautiously recommend looking at this unit for a very simple, USB controller-based rig (with maybe one MIDI keyboard / module). But for larger rigs, it still has a ways to go. Great concept, but not quite there yet.