How Worthy a Speaker is The Paradigm LCR-450?

For sale on eBay is a trio of Paradigm LCR-450 speakers. Has anyone owned/heard these? In doing research on the internet, it appears there were at least two versions of this model; one with yellow woofers and one with black woofers. Common to both it seems is the well regarded Paradigm PAL (Pure Aluminum) tweeter. If purchased, I would use only two them as monitors in a two channel audio only system. Do these compare at all favorably to the Studio 40?