Delivery was quick from an eBay seller. Inside the package there is the flash gun, a Chinese/English instruction, a pouch and plastic stand for mounting on a tripod. All I can say is it works perfectly. I tested it mounted on the camera and off camera as a wireless slave, both in ETTL and manual modes. When I checked the power, it has a full stop more power than my Canon 550EX flash gun. I am very happy with this purchase and can’t wait to test it on a photo shoot coming up.
I was able to use the flash on a shoot a few days after receiving it. The occasion was the celebration of a 50th wedding anniversary family gathering. It was held at the Ritz Hotel in London. I was given 30 minutes in an area of the hotel to photography the family. With the time constrain, I decided against using my Strobeam DL4 and shot wireless TTL using my Canon 650D as the commander. As well as the YN565EX, I had a Canon 550EX also in slave mode. Both flashes were mounted in an umbrella bracket with shoot through umbrellas. It all went to plan and the results were very good. Shooting wireless TTL enabled me to work a lot faster. Overall I am very happy with the results. Here are a photo from this shoot.
Update 24th April 2013: Recently I had the chance to test my YN-565EX with a Phottix Odin wireless trigger system and can confirm they are not compatible with each other. When mounted on the receiver, the zoom can be controlled and when the test button is pressed, the flash does fire. How ever, the flash does not fire, in both ETTL or manual mode, when the shutter button was pressed. That was a disappointment as I was hoping they will work together as I would like to purchase a set of Odin soon.