Summary: I bought this flash for my EOS 400D. I didn't have the money for a Canon 530 EX Speedlite, and this item was less pricey than the 430 EX and as powerful as 530 Ex. So, I said: Why not? If what you need is a powerful, fast-recycling, TTL-II flash, this is what you need, for a great price.
Summary: I used this product once for an event in a place that had high ceilings. The flash is great,powerful,heavy. I returned it and got the Impact 2 light fluorescent kit instead since I mostly do product shots. But when I did use the flash it wasn't for me, I think it's great and any guy that needs it should buy it but It didn't suit me and my needs.
Summary: I purchased this product specifically because I was asked to photograph a wedding and I knew that I would need a better flash than my Canon Rebel provided. It worked very well with my camera, it is light weight and easy to manage. It worked very well for within 50 feet after 50 feet it does not provide sufficient illumination.