Ubiquiti does too but if you read the fine print it has about 1/3 the range and output of the full size models. It makes me wonder if there is an inherent drawback to the form factor, like maybe the antenna can't possibly be big enough to have a high performance radio.

That being said, I have never had an issue placing normal size units in inconspicuous places such as the lid of a closet, mechanical rooms, pantries etc. we have even placed them in a hallway lined up with recessed lighting and it really doesn't look bad.

This is assuming you are doing PoE with no visible ac adapters or anything.