Pretty good, but like some others have said, the pen holder-looking grid ones don't work well. I wish I had realized when slicing that it wasn't very tall, I would have scaled it up a bit.

USB flash drive holder is a good concept but doesn't work for USB-C, and you do have to remove the caps from / extend your USB-A connectors. I understand this, because USB flash drives are all different sizes while the USB-A connection point is uniform, but I'm only keeping sticks I don't care about too much in it, as I don't want to risk damaging my really nice Samsung drives and would rather leave their caps on, so I removed that drive from the holder after taking the photo. (edited)