This is the first time im finding out about the company. They don't have much Fiat 500 parts, mainly aero stuff. I dont think there a well known company, if your planning to order from them I suggest you wait for some customer feed back.
The stuff they offer is for 2007+ Fiat 500s... My guess is that the parts offered were originally for the euro 500. I'd check compatibility 1st. I could not find an address on their site... and that always concerns me.