Shorten review for the lazy readers: Text is not animated, noisy, distracting, more better just getting lucky.

My concerns:
Only pro is I guess it lets you know how close an elevator is...

But the cons are so terrible. Making noise is not only just attractin attention but its deafening any other important sounds to where you would rather have it off for the majority of your search and most of the time would end up finding an elevator without it and even if you were to use it as a last resort elevator find. The beeping is not helpful. Sure its telling you about an elevator's position on the map now but good luck trying to find that elevator and hope you dont just find multiple dead ends first while again making noise and therefore as a last resort ends up being a beacon for all enemies instead.

Co-Op potential pro?.. is if you want to take aggro as soon as possible or think someone may need help. You could use it to make noise without showing yourself to anyone and therefore also hide a lot more reliably without a closed door or stun. This is a expected use as I never played Co-op yet but I want to try to see some positive out of this item despite how much I hated using it.