I've really enjoyed flying Y on the CS3/A223 on my various transcons. The seats are really comfortable. The cabin is bright and spacious. Stuff fits in the bins.
Plus, I've had a few flights with empty seats or rows.
One recent flight had many empty rows, so here is the CS3/A223 version of a "Y Lie-Flat"

Sure, not as plushy as the old A32x birds but actually quite nice.
❤️❤️❤️ this mood lighting.