I too have found several frustrations in trying to get it set up and I still haven't got it working at all reliably.
As others have said, it changes position rapidly when going from connected in powered on mode (green light) to powered off but connected (blue light) - it goes to maximum deflection. At various times whilst trying to set it up it has spun wildly until some cable or other has got caught in the mechanism, or it's jammed, or pulled a cable out because of the twisting motion. A bit of programming that tells it not to command continuous rotation at high speed would be a good idea.
Some of the connectors can only be connected by trial and error because they're not keyed and the colours of the wires don't match (this is with an umodified 130 gimbal, so all PH gear). Get the pot connectors the wrong way round and it will go crazy, though seemingly not actually permanently damage anything which is good.
A short time ago it was on my table slowing oscillating from one extreme roll angle to the other, then back again, whilst everything else was perfectly still.
The instructions are woeful which is a shame - I know it's a new product but it would take about 2 hours to turn it in to a useful document that might actually lead to being able to get the best out of this device.
During the time taken to compose this post it has sat on my desk not moving, green LED showing. Just now, with no change in position or anything it just suddenly jumped through about 10 degrees of roll, then back again about 5. So, as yet I am unconvinced, though early on I did try it with a camera on and during that test it seemed to work really well. It hasn't done since though and variously won't move at all and will let the gimbal move freely, or it will lock the gimbal in position but not stabilise motion at all, or it will drive the gimbal around wildly whilst the copter itself is completely still.
