I loved the trip I just took on an AC 773 from YVR to YYZ and am actually considering taking this aircraft in coach (yes, in coach) to NRT or HKG. It's a shame AC doesn't serve TPE, though.

I noticed the aircraft has two rows of twin seats. Row 16 is not near the lav, but the armrests don't go up and the seats are narrower - not the best choice for someone looking to maximize space.

Row 25 had great space and privacy, but the seats are in front of the lav.

I would probably opt for row 25 and just make sure I had earphones or earplugs to block the flushing and door slamming while I watched AVOD or slept - are these desirable seats, or should they be avoided? Does it get very smelly in this area during the flight?