Funny I was probably on the same flight (I left SYD on Tue 27th)
I thought the very same thing. The seat is perfect for sitting about, doodling, but for sleeping, it's pathetic.
I had noticed a couple of J passengers were bumped to F (as J was oversold).
I was in 8F, and the annoying curtain/toilettes ahead made it hard for me to sleep.
Had I actually paid for this ticket, I would have been quite disapointed, but I had used my miles to snatch the seat less than 24 hours before, so can't complain
I did not like the fact food was served so late into the flight, and how the breakfast was sort of disapointing (a bit dull after 13 hours or so onboard).\
We landed ahead of schedule (which was excellent), it got me to spend some neat time in the shower in the lounge before I caught my connection.
Having flown the F on the A345, I could say it has to be the best product EK has. Yet to fly the new J class (maybe, just maybe next week I will get to experience it).
MilesDependent, where abouts did you sit on that flight?