I have the SMD net tent, which is designed to connect into my Gatewood cape.
It's a bit tight inside the net tent, and unless laying down it can be tough to not have the mesh right against you, leaving the possibility of being bitten through the mesh, particularly at your head and shoulders (note in the pictures how it comes up to a point). You have little to no room for anything inside there but just your body, so with almost all of your gear outside the net tent, you could find yourself opening up the door periodically to access and generally deal with stuff.
So I personally wish it were a bit more roomy inside, but it's a typical kind of trade-off --- less spacious and comfortable, but lighter as a result.
I have no knowledge or experience with the other shelters, except for the MLD one (that you were going to order). If I recall correctly, a person can't even fully sit upright in that one (?) --- definitely a factor to consider.