There is no way that Singapore Airlines PE hits the 'sweet spot' without access to dedicated PE toilets. Sharing with economy is a massive disincentive.

Departing Melbourne at 325 am? What a joke! No way!

Q runs flights from Melbourne to Sydney so why not this flight?

A pity that Melbourne misses out, but then Melbourne has always been low down in Q's priorities.

Yes, this is a real turn-off for travelling PE with Cathay.