Here is my brief experience. I bought the part before Christmas plus 2 YN560III flashes. I found it very user friendly without the guidance I needed. I have just the two flashes placed in the corners of the room, the walls and ceilings had a large radiating surface for the light. After a minute I had the correct settings for found the exposure and it could go. What can I say, the images have become much better than with attached flash and I could adjust the lightning fast with the device which has given me a lot of fun. I can recommend it to anyone without restriction only. TTL is not transferred, but there is the possibility to have a short run to the flash without changing the settings. For high-speed HSS radio triggers are not suitable so it is not the first choice for outdoor shootings for me. I'm going to buy in any case, even a flash this and already know that it will continue to make a lot of fun.
