I use my Raspberry Pi Zero W's headless. I don't need access to any ports other than to get power to the computer and GPOI access. This case is for those use cases. I've uploaded two lids and two cases, one each with and without a GPIO slot. It's "roomy" in that I left 12.5mm around three sides for routing wires or holding any components a project might need rather than trying to squeeze it down to the same size as the Zero.