Yes i'm finding that most work time atm is actually editing and building new libraries of materials such as various types of glass, metal and plastics - especially translucent. The default glass and metal ranges just have not worked well for me for any of the architectural environments so far. I have had to build new ones for just about every base metal and surface finish. Although the default set are useful reference starters - it would be nice to have access to items like the Chaosgroup VRScans material libraries - but scanning my own textures atm seems to be working well so far - if a little tedious -especially the photoshop work. And deciding which base material setup to use takes a lot of reference reading... and then endless test renders.