Bought for my son and was played with once or twice then stuck on a shelf, I can tell visually that there is a few bits missing, so I would say it's around 95% complete.
Excavator rotates boom goes up/down and also in/out, tracks are complete and work as they should, gearbox works and also the control wheel on the rear.
As said before, this has been sat on a shelf for quite sometime so it will be dusty, there is also some paint flecks on a few connectors.
No box or instructions.