"The echo detector construction is somewhat sloppy, but the point of the prop comes across very well. It doesnt have to work exactly as in the game, it just has to look like it. There are plenty of parts where you can tell a sticker wasnt placed quite right or it needed some filing on excess filament that it didnt quite get. Overall its still a great product, but not quite worth $50, maybe $35-$40. If youre looking to make a STALKER cosplay, this is definitely something you should get."