You have all the opinions of people who have information of the products and services of NASA Marshall Space Flight Center (Museum) in Alabama.
Currently this firm receives a rating of 4.7 stars over 5 and that score was based on 66 reviews.
You must have seen that the average of ratings is virtually the best one, and it's based on a large number of reviews, so we can say that the evaluation is quite accurate. If people have bothered to give their score when they are satisfied, it works.
You know that we do not usually stop to set evaluations when these are positive and we usually do it only if we've had a problem or issue...
This is included in the category of Museum.