I am trying to decide between getting the Z3 or the AE700. On this forum, I have seen an extensive list of known faults/issues with some AE700's. Is there a similar list for the Z3? Are there a significant number of known problems with the Z3, as there seem to be with the AE700? And is the black level on the AE700 significantly better than on the Z3, due to the AE700's dynamic iris, or is it a subtle difference? Thanks.