Currently using it...its been 1 1/2 years now..went for the medium setting...slightly on the softer side though, the missus will go crazy if i slotted in the hard setting..overall performance, so so..but the good thing is, each of these sets are specifically targeted for specific car makers..
That explains why it only listed Proton, Perodua and last i check for toyota vios..they have 3 variants..soft setting, medium setting and hard setting...each come separately..meaning..if u've bought d medium setting, later on if u wish to change ur settings...u have to buy 4 cluster sets with a different weight ratio (each RM200++)...
Maintenance wise, its serviceable..and parts are easily sourced..it offers only hi lo..no soft hard setting..Driving and handling, perfect for my need, that is daily driven and occasionally spirited driving..but medium setting is a big no no for circuit driving..trust me...i've tried it..hehehe..
Compare it to other brands, positive side would be the a) price..i would put KYB RS Pro in d same category as GAB SS..in term of feel and stiffness..b) parts easily source..any falken dealer would have it..
Negative would be, a) once u decided on certain setting (eg medium or soft)..u have to splash close to 1k if u later decide in changing settings..b) for me, it is not a performance adj abs per se..its a friendly absorber :hmmmm: if i may put it that way.. :)
My verdict, get one..if your ride is daily driven and u think eibach sport spring is hard then its for u.. but skip it, if ur used to the feel of TEIN, HKS hypermax etc.. :)