Arospeed adjustable's

my friend has a 90 Civic Si, and hes got some Arospeed adjustable springs... i was wondering, he said that he liked his, and that maybe i should consider them, i know they are cheap and that was one of the first things that caught my eye....130 for 0"-4"'s i was like hmm...and he hasnt had any problems with them, i was just wondering from all the experts out there (everyone that reads this) what do u think ?