My tally so far:

Gen Jetfire - minor issues caused by 3rd party but quickly sorted out
CW Megatron - arrived no problems
CW Menasor - arrived no problems
MP Star Saber - arrived no problems
CW Defensor - arrived no problems
CW Brake-Neck and Quickslinger - arrived no problems

Overall, very happy and have a few more pre-orders waiting in the pipeline.