I'll second that it works quite well. The key thing is that if you don't have a USB adapter plugged in, make sure your network configuration doesn't think you have a USB adapter configured. Most of the E1.31 testing I have done, including a small demo/presentation to city council was done with just the laptop, ethernet cable, and E681 driving one or more pixel strings. Much of it from the sequence editor. If you tell it that it has USB hardware, it tends to perform poorly when trying to initialize it and play the sequence. And while yes, the PC will generate the effects, and send them out