I've never heard of this site before but I've heard of another that does the same thing. Not sure how accurate they will be compared to the original but it's possible. I own 4 bottles of cologne from a company called Design Imposters and they specialize in copying colognes. Their version of Acqua Di Gio, Abercrombie Fierce, Unforgivable, Eternity, Drakar Noir, Curve, and Armani Code are spot on in both the scent and the longevity compared to the real thing. If any of those are what you want from the fragranceshop.com, I'd suggest you go with Design Imposters. $8 for a 2oz bottle of juice that smells just like the real thing is a pretty good deal.
I've smelled other so called designer impostor colognes and they are not even close. This company however is legit.
This website has me intrigued now though. You have to send them a sample of the cologne you want them to replicate so they can reverse engineer the scent. If they don't get it right the first time they will take your suggestions and try 2 more times before refunding half your $60 replication fee. They even have some Creeds on there including GIT and VIW. I wonder how good they could actually replicate Millesime Imperial and make it last longer...