The battery charger that came with this is junk. It does not indicate when the batteries are charged. This means you need The battery charger is basically junk. It does not indicate when the batteries are charged. The bracket is a $16 item. The rest of the items are worth very little.

This is one of the best speedlights I have ever owened. Built quality is extraordinary, light output is amazing. I recommend this unit for indoor /event photography.

Powerful; fast recycling

bulky

The radio system lets you easily control all your flashes from the camera with some using TTL and some on manual and even switch modes without having to touch the flash. It's just amazing.

Supports both radio and optical triggering, so if you have the 400EXII's you can slowly convert over without having to buy a radio transmitter on day one; Great power and good batteries will last for quite a while

Price

This flash was well worth the money I spent on it over purchasing one of the cheaper ones. I'm not an advanced photographer but I am learning. I've also bought the ST-E3-RT which compliments this flash making getting the flash OFF the camera and into a place which is actually useful a breeze.

Easy to use; Build quality; Screen size

Complicated; Bulky

I've been an international photographer for over 11 years now. Just switched back to Canon after 6 years with another brand. After all that time I just never bonded with the other brand. I love the quality I get with my Canon system over any other system I've ever used.

I bought my 600 EX RT in late 2015 after I thought my 550 had been stolen, so this is really not a case of an upgrade, just buying a top of the line flash out of desire for the most options and reach.

I am very satisfied with all the features.

with this modifier light is reduced by 2 stops the casing is made of thick plastic which i think is a little too thick not for the amateur photographer.

Very pleased with the flash. Very powerfull and great light. Well packed and fast shipping (Vistek).

Canon 600EX RT (18.7 oz./529g with 4-AA eneloop cells, 2.5 second measured recycle time, measured ISO 100 guide number of 29 meters/95 feet at 35mm, rated guide number 36m/118' at 35mm, 20-200mm zoom head with 14mm wide panel and catchlight card, about $470 new ).