Yes, the ESC were attached and the soldering looks pretty solid/clean. The wires could have been aligned a bit better to the center so it would be a bit easier to fit the outriggers/legs. It is doable though.
The motors is a different issue, I cannot find the producer of these motors. Found 1 youtube video in which a guy tested the motors and their balance, tolerances etc and said they are pretty good.
Now, is there anyone out there who has experience with this KKMulticopter Blackboard V5.5 controller ??
I would love to hear some more about it.