I purchased the Bad Wings specifically to figure out a good 36 key layout that would work with other similar split boards. I also thought it would be easier to travel and use a one piece on a plane. I have found the ease of working with the 2040 compatible Xiao seed MCU a joy, flashing easily and quickly as I make dozens of adjustments during a session.
The board itself has a smooth appealing case, and the touchpad works well. My only complaint is the lack of buttons to reset and put it into bootloader mode. I dealt with that by creating a key on a higher layer that would put the board into bootloader. I love that I can flash it be dragging over the uf file like I would with a USB drive.
It is the perfect experimental hobby board that I may put into permanent use.