Im in bay 406, pretty stoked tbh.
Lower rows 406 isn't too bad, if you've ever been to Suncorp it's about the same as sitting on Level 6 at Suncorp but a few meters further from the action.
Personally I don't like Level 4 at ANZ and I don't think they warrant being classified as "diamond" seats but it will be a full house and I think you will enjoy it.
Have fun mate.