The cubby spot behind the FO fits a 22 inch rollaboard exactly standing upright on its wheels. There is a velcro strap that keeps it in place. Don’t buy a 24”, it won’t fit. I have a standard luggageworks stealth 22” and it fit in there like it was made for it because it probably was.

It’s actually kind of nice as if you park it in there straight in with the handle side out you can leave the handle l extended and it makes a perfect jacket/coat hanger.

The spot next to you, next to the breaker panel, fits a good size general/flight bag. It was clearly made for the old big leather chart bags we all used to carry if you’re old enough to remember them (I’ve flown with FOs who look at me like I have 4 heads when Ive mentioned those since they were still in middle school then). I have the large Aerocoast EFB/pro cooler 2.0 and that used to fit with my computer, iPad, and some magazines in the pocket and full of a trips worth of food with room to spare.