I had not heard any bad things about this source. Check how old is the domain name using google and try to check if they are the official supplier of other brands, if yes, then it is a real source. Try to make a test order and after that, you will see if the products are real or not.
Be aware of the sources that accept credit card and PayPal. Most of the time they are scam websites. And I would not use to buy AAS products using a credit card or PayPal, it can be tracked by authorities and it is not good for you and the source. The best is bitcoin, it is anonymous and untrackable.