I’m not sure why you would spend a small fortune on the Canon product given that you can buy this K&F Concept flash gun at this sort of bargain price and it does everything you can do with the costlier model.First of all, the build quality of this unit is outstanding for the money. It has an excellent LCD display which unlike some units I’ve tried, is clear and easy to read.The tripod mount on the unit is very well designed. The unit also comes with a durable case and a mini diffuser/softbox is included so you might want to hold off buying extra items until you’ve unboxed this little beauty.The device has proved very flexible both as a bounce off the ceiling and when diffused in a medium sized soft box.Simply set TTL metering on and away you go. Once you’re confident, the unit is easy to operate in manual mode where the creative opportunities really get going. Just dial in exposure compensation, flash power, and so on until you achieve the sort of effects you like.I’ve noticed that some reviewers have mentioned that the unit draws a good deal of battery power but this is easily remedied by using rechargeable high capacity nMh batteries. Look for ones with the largest mAh rating you can afford and avoid alkaline ones because they are designed for other uses.This unit is designed for professional use and the light it can put out requires effective power. Having said all that, There is an external mains power option so you can use it without any power worries if you’re in a studio. The unit also performs brilliantly in remote mode.Overall, I highly recommend this unit. I’ve recently bought three items by K&F Concept and each one of them has been such great value for money.I’ve included some pictures of this unit because I am very impressed with the build quality.Good stuff!