The best for a few years were around Kylie's death in my opinion, that's when it felt like it was going back to what it did best.
However Friday's episodes were very good compared to what we've had lately as the Nazir revelation didn't feel tame as I thought it would, it was actually quite dramatic and powerfully acted.
I also noticed the directing, some more movement in the camera than usual.
So yes, best for a coulple of weeks (although there was also Monday in stunt week which was very good), but no not in a few years.