To be fair, and if the Edge SIM and micro SD card drawer is like the S7 version, it is pretty flimsy and does not hold the cards securely enough. They can jump out or partly jump out of the drawer as you are pushing it in - it needs a better design - and for that reason I wouldn't recommend anyone to make frequent use of the ability to swap micro SD cards (or SIM cards for that matter). It's a bit too tiny and flimsy.
Mine have only jumped out onto the floor though, not inside the case so far, so I can't help on that.