You have the feddbacks of real people who are using the products of Pinkerton - St. Louis (Private Detective) in Illinois.
At present the business gets a rating of 3.7 out of 5 and that rating was based on 3 reviews.
You must have seen that it reaches an reviews average is good, but it is only founded on very few opinions, so the rating is not too reliable.
You know that we do not usually bother to give scores when these are positive and we usually do it only if we have had a problem or incidence...
This Private Detective belongs to the category of Security service.