Very good value for money, has all the features much more expensive flash units, ETTL working properly, as well as manual control. Flash head tilts and swivels. Guide Number 33 is quite enough for me. Since I do not often use an external flash, I wanted to spend no three-figure sum, but still have a flash which gives me lots of ways of creative flash open, but also a compatible automatic features (for my Canon EOS 550). This flash is fulfilled this wholeheartedly. Delivery was fast since:'m completely satisfied!