UPS delivered two Di700a speedlites and an Air 1 commander this afternoon. Early testing demonstrates that this is essentially the same capability as the 600EX-RT with Canon that I used from its inception until abandoning Canon for Mirrorless. My immediate test confirm that it works in standard as well as HSS modes. I have not determined if its possible to use a flash on camera as the master for the other groups. That's my ideal setup. Using the commander on camera with three groups off camera is a nice capability but somewhat less useful. With the Canon 600EX-RT system, when using the STE3-rt on camera I often used 4 groups. The Nissan Air System offers only 3. At the moment I'm encouraged with the results. Definitely the best speedlite option I've found for Mirrorless systems since abandoning Canon.