Good points all. If you ask me I agree that the Indonesians made a wonderful choice. These will be their lead ships, considering two frigates will cost $720 Million and that they are 6,645 tonnes displacement each. The superstructure design seems sound, and the hull is sound as well. These days no nation has money to spend on cutting edge unproven designs except the US, which has a different class of wherewithal.
But US made some mistakes too, with the latest Independence class etc.
The US can afford to make mistakes, nations like us should think five times before taking any step.
The cost only covers some sensor and navigation system (mainly provided by cassidian/hensholdt and terma) beside the hull, but captass (if any because the Navy will likely projected the Itver based class Frigates as AAW Frigates) , Missiles system and other subsystem like ECM, EW, CIWS and among other would be at separated deals (FFBNW) with ongoing negotiation for ESSM or MICA /CAMM ER and so on still not being conclude.
Meanwhile as multi purpose/ASW platform would be provided by 8 FFM 30 based class. And other thing is Indonesia is in the hunt for second hand Frigates platform mainly from Europe and Japan. This very important phase for us, as the Navy found itself at cross roads and forefront of another type of Cold War with PLA Navy increasingly being belligerent and bold enough to cross our Naval boundary at multiple occasion and places.