Having tried a few escape room games before, Find the Key definitely isn't the best if you're smart and want to solve tricky enigmas quickly to escape. This one is more like a million of locks to open by guessing random combinations, so you don't have to be smart, just being lucky. *spoiler* In the room we were, the microscope was not working so we never could see the numbers on the slide and the flash black light was too weak to be able to see the signs on the walls... when we addressed this to the management in the end, they didn't seem to care!