Overall the case is well made; the materials have a high quality feel and look. The metal parts seem to be placed in a way that does not interfere with the signal, at least i could'nt measure any decrease in signal quality. The problem is: The case enclosed my iPhone SE 2020 so tight that the volume buttons were permanently pushed down with the case fully assembled. This made the case unusable and i had to remove some material from one of the wooden sidepieces to make it fit.
This case permanently damaged the glass of my phone.