While their boot camp does what they say, they are too much of a one note. They don't cater to anyone and believe that their way is the only way. If they want you to do a lift and it doesn't feel right, they say you are doing it wrong. They don't give you any options to accomplish the same goals with a different move. So, if your shoulder pops during straight arm lat raises, they tell you that bending at the elbow is not right. They also won't tell you that it really isn't a good move in the first place or that a military press essentially works the same muscles. It is basically their way, and any other way is wrong.
If you want a trainer that gets you to a certain goal, ok, go with them. However, if you want a trainer that gets you to that goal in a safe and effective way, go with someone with with a CSCS. The only one I would trust there is the registered dietitian; you have to have a degree for that. While the Cooper Instituted is somewhat well respected, why doesn't the company require someone within the organization to have a certification that requires at least a bachelor's? Fitness certifications are a dime a dozen, and they don't mean anything just because it says "certified" in the name. A 20-hour or 40-hour class does not make a safe and effective trainer. Having someone be passionate about their own personal fitness does not necessarily make a good trainer. There are some exceptions to this rule, but Shark Fitness is not an exception.