Me and a +1 were in 1B/C today and I can confirm those front two middle footwells are massive, significantly more so than other seats. For some context, that’s the pillow on top of the duvet in the footwell, both of which are stowed longways from left to right. Pretty sure I could have stowed my carryon suitcase with no issues had I not put my backpack there. I’m 6’3” and can’t stand the tiny footwells of today’s business class cabins - these were great! Was able to easily roll over and sleep sideways with no issues. Downside is you’re right beside the bathrooms (didn’t notice the traffic through).