CST Coilover?

[outtamyway]

There's a dude on here selling a set of CST Coilovers on ebay but I was wondering if they're a good coilover. There aren't many US shops selling this but I guess in Japan it's a better known company. Google search lead to to Tanabe, which is now distributing CST. The thing is I've always been weary of buying used but the lack of info on the web makes me reluctant to pull the trigger. any insight you guys can give will help!

CST ON EBAY (http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=280655436982&viewitem=&sspagename=STRK%3AMESE%3AIT&clk_rvr_id=235567532683#ht_4477wt_939)

Circuit Spec Tune - CST Coilover System (http://www.tanabe-usa.com/CST.asp)