Flew QF PE a couple of weeks ago, night flight HKG-SYD.

PE is nice. It feels a good step up from Y.

One thing, which was an annoyance, is that it can be tricky for some passengers to get in and out of their seats when the ones in front are fully reclined (which they do noticeably further than in Y). I noticed, and felt(!), it when the passengers behind me got up and down, which they did frequently, as they would grab and pull back on the back of my seat to squeeze through. Any time I managed to doze off I was awaken.

If you are in the last row of PE this shouldn't be a problem, and if on a day flight you might not recline so fully so less of an issue.