I had issues
I could not get multiple cameras to work for my football game Friday. I don't think it is a Mogulus issue, but a bandwidth issue. I was near the end of the 100m distance between switches for Ethernet, and I doubt my connections would certify as Cat 5e. We have a T1 line and our streams were about 600 mbs. we could not switch between cameras. We could have reduced quality and that may have worked, but we decided to keep quality and go with only one camera.
Now if someone has a spare $6,000 laying around I would use it to buy a NewTek Tricaster and do live switching on site and send only one stream to Mogulus.