Pros: Very simple to use product. Great quality and can't beat the price. Get everything you need with this. Of course it's not the 580 but it has yet to let me down. Speed is great, accurate lighting, no complaints. Definately a must for portraits and indoors photos (stock popup flash does so little in comparison).

Cons: None.

Overall Review: Overall this is a nice balance between power and size (including weight). Would recommend this product to any photography enthusiast. Worth the canon premium.