The shell of Goodstyle fits perfectly, the Passport is securely held by two lateral plastic guides and can be removed easily when needed and just as easily put it back. The leather is an excellent workmanship and looks "valent" in that the LED through the "hole" is not always recognizable, is a minimal deficit. The incorporated magnetic switches the Passport, but only if the envelope front applied to the unit. If you fold the cover behind the unit, it will continue to operate.