The domain grandcentralmets.com is brand new and has no published content whatsoever. That makes it impossible to tell what kind of business or project this is supposed to be. For any legitimate operation, you'd expect at least a contact page or an about section, but this site has neither.
There are no grandcentralmets.com reviews available online, which fits with the domain's age. While we cannot definitively say grandcentralmets.com is a scam, the complete lack of transparency and missing contact information are serious warning signs. If this is meant to be a business, it's missing essential legal pages and customer service channels.
As a rule, when a site gives you nothing to verify who's behind it, the safest decision is to stay away. Until the owner adds real information about what they offer and how to reach them, there's no reason to trust it.