Review on YONGNUO YN660 Speedlite: Versatile Wireless Manual Flash with GN66 Power for Canon Nikon Pentax Olympus by Abby Libbett

Works fairly well with the limitations that third party flashes/triggers have anyway and you can't beat the price for the functionality. I have Canon flashes and pocket flashes but they are expensive and difficult to set up while they have built in radios and you can get cheap and simple triggers too. I bought a pair primarily for real estate photography and rented a house with them. I would give 4 runs but I already have a defective unit out of the box. One worked well and the other often didn't work. It turned on, showed it was charged and ready, but often only worked after 2-3 presses of the test button. Then it works properly until the setting is changed or it hangs for a few minutes. I could also see that it was receiving a radio trigger from the indicator light, but still didn't blink until I had my first successful test shot. It was very frustrating. But with a different flash it fired every time without error. The broken one is back in Revain now and I kept the working one. I'll probably order a second one once the return is processed. I still recommend these flashes for the price, but be sure to try them out within the return period. If you need to exchange, no problem. If one breaks in the future, buying a second or third will still cost less than a big name brand.