The staff it's super knowledgeable, they always help you find exactly what you need. The store is expensive especially if you are into fitness and go to the gym
(I'm definitely talking about my hubby)
One time when we were looking for a protein powder one of the staff members offered us the most expensive one and I really thought it was because he wanted to promote the pricy stuff, but then we made our research and indeed was the best protein powder out there.
What I mean is they are going to help you, they will recommend you the best and will advice you in the best of their knowledge to improve in whatever you need (fitness and health related of course)
You will spend a lot of money on a few products but if you follow instructions and are consistent with your exercise, healthy diet and products, you will see the results.