Got one, great as an on camera flash, though it wont work with a wireless trigger. No problems I thought, I'll use my on camera flash to trigger it in slave......nah slave function stopped working.....sent back to get fixed ( only had it 4 weeks ) ..repairers had it close to four weeks. Came back fixed though. I now owm a Jessops 360AFDN as well for the of camera flash work as it works with radio wireless triggers and i have to say is better as a slave flah even with the nissin 's new firm ware update. Great on camera flash though.