Looks cool, it's great to have another good open source ready-to-fly option.
I have some concerns about larger PCB quadcopter designs because I can imagine that fatigue due to flexing on the PCB over long-term use could cause issues with the PCB delaminating or solder joints failing. On the ArduBee particularly, you can see a lot of surface-mount components mounted on the arms. I'd love to read more about any lifetime testing they've done on the PCB.
Of course there's always the risk of just crashing your drone and breaking it, but that's no different than other drone designs!
I have some concerns about larger PCB quadcopter designs because I can imagine that fatigue due to flexing on the PCB over long-term use could cause issues with the PCB delaminating or solder joints failing. On the ArduBee particularly, you can see a lot of surface-mount components mounted on the arms. I'd love to read more about any lifetime testing they've done on the PCB.
Of course there's always the risk of just crashing your drone and breaking it, but that's no different than other drone designs!