Spring Works - anyone dealt with them?

[tiwing]

http://www.springworks.com

they sell polyurethane bushings:
Sway bar: http://www.springworks.com/auto-bushings-sway-buy.html
End Links: http://www.springworks.com/auto-bushings-endlink-buy.html
Bump Stops etc.: http://www.springworks.com/auto-bushings-bumpstop-buy.html

i'm not associated with this co at all - just want to know if anyone has bought from them before. Thanks.