You are not. The seat is slightly smaller, due to the aircraft itself being slightly smaller than a 77W.

In this case would the CX889 on 77W be preferable to CX855 on A359 in J as A359 seats are smaller?

The CX A350 was my first reverse herringbone J product and this must be why I was so unimpressed with the seat compared to the rave reviews reverse herringbones usually get. I'm 6'3" 230 and didn't find it that comfortable. Maybe one day I'll get a chance to compare to the 77W.

Flying in December JFK-HKG...itinerary was recently switched from 777 to 350...flying in J

Could you provide a few more details, are you connecting through YVR or SFO ?

My mistake...it's actually the second leg...HKG-MEL will now be on the 350

Sorry about that

No worries, safe travels!

I'm ambivalent about the seat itself, since I didn't get a chance to try out how well I sleep in it. But the IFE/wifi are definitely better and the cabin comfort level in general is better.

They're obviously different animals because of the departure times.

IF all else was equal, I'd do A350 in a heartbeat. It's the best J class on CX for sure and now that I'm getting used to CX planes with WiFi, it sucks when you don't have it. CX's A350 WiFi is just damn good. It's nearly on par with what I've had on that JetBlue "Mint" business class thing. (Only flown once, but I remember it had very good wifi). CX's A350 wifi beats SQ, QR, JL and EK, whom I'm familiar with.

However, a) if you're going for an F upgrade with miles, that is only possible on CX889, and b) CX889 YVR-HKG is just fantastic for sleeping. Depart, watch a brief show, doze off, conk out, sleep 9 hours, breakfast time before landing, full day upon arrival. The US late night departures (SFO, LAX, JFK, EWR, BOS) are just a bit too long flying time to be as perfect as YVR. Obviously the A350 is a daytime departure so different animal.

I don't think you'll find any business class product overly spacious at that size ;) I'm 6'2" and even the 77W seat is right at the limit of comfort.

The advantage of the A350 seat is the design and feature improvements over the old version.

EWR to become A350
 

Schedule loaded as of October 29th, 2017

Well that will finally stop those who kept saying A359 wouldn't make sense to east coast NA

Should've stopped when SQ started their nonstop SFO-SIN service.

A359 to LAX and East cost will have load penalty.

Nice upgrade for EWR in my opinion.

35G is a clear-cut upgrade over 77G.