FiTech EFI system

All I have read here and else where everybody appears to be happy with their Fitech system when they first get them...now that many of you have had them for a while how are they on the road, ease of tune & driving plus fuel consumption wise.... I'm thinking of importing one into Australia for my 318 powered Dodge ute....with our lower dollar and impending GST tax on personal imports it will be an expensive item....need to think carefully!! feed back please.....