The device is processed wertig, surprisingly compact, easy to operate after a short (but that would go even better).
Macken? Yes two. First, the device smell with intensive use something like burnt release agent. Second, the overheating protection with heavy use as strikes occasionally. This is probably due to its compact design.
I would buy it again and again, what I might soon even do. Two flashes creating design options.
Oh yes: The firmware update works perfectly, and that has really no other.