Excerpt: This is a very powerful flash and I suspect its more powerful than its guide number suggests. It does every-thing you could ask of it very competently but it does have some flaws. For such a power hungry beast it needs an external power- pack but there is no provision to connect one,the instructions are so bad they may as well not provide them and the build quality could be better especially the battery door.
Summary: Flash output and function accessibility are good. Loaded with features for the money, but still had problems. I'd say 95% of the features worked fine for me, but a couple I needed didn't work.This flash did not work for me as a main flash hooked up with alien bee transmitter/receiver set up. It would work as a slave to my dg500 super, but not a main. It also cannot recycle as quickly as my dg500 super.
Summary: Its got the power (The 500 DG Super Im refering to). But Im still not sure if it's my lack of knowing how to use the flash, the manual doesn't help any. Ive got the Ole Canon EOS D30, yes thats right the 3.25MP Dinosaur.