I do not know the brand before Yongnuo to immerse myself in reading tests and specialized forums, but apparently this young brand has already built a solid reputation, so I tried.
I'm really not disappointed (well, my father is not disappointed)!
The flash works perfectly, with very short recharge time, and excellent NG 58.
The flash comes with its case, stand, and a diffuser (which takes quite bad, but it's a detail).
Another detail can be annoying: the English manual. For such a product manual is not necessarily required, but if you have the habit of reading, it can cause problems.
Like all poorly performing a flash, it Yongnuo YN-568EX uses a lot of batteries (good for fifty Flash 4 AA batteries): Invest in rechargeable AA batteries 4 high power, you will not regret it.
Erwann on Amazon.com