I payed for Y return SYD-SFO in October and was pleasantly surprised that my seat mapped into PE both ways. Must be the WP talking, I guess.
I actually walked past my seat - 35A - in SYD and into the Y cabin before I realised the row numbers were too high and turned back.
Two by two on the window sides. About as wide as J, but nowhere near the legroom. A lot more room than Y, and every centimetre is precious. I won't say I was comfortable on the overnight flights, but I managed to grab some sleep without drugs.
I had a row to myself on the flight over, and it was very pleasant to have uninterrupted aisle access - and room to stow my extra kit. But even with a companion on the flight back it was no chore.
The meal (and drink) service was regular Y, but I wasn't paying anything extra, so I didn't mind. I believe that if you book and pay for PE you get better food. Something in between Y and J.
In fact, I was paying less than regular Y - the fares were on special and I saved a few hundred dollars off the rack rate.
I don't know if I'd actually pay for PE. A lot more comfortable than Y, but I still couldn't get anywhere near the recline I need for easy restful sleep. J or even F for that.