Has anyone here have experience buying replicas of designer lighting from one of the sites out there like http://www.lmodernlighting.com/ or http://www.franceandson.com/? I'm trying to figure out if there is a noticeable loss of quality or if the replicas are good enough for the average person. Some examples of lighting I'm thinking of purchasing replicas for are PH Artichoke Lamp, Caboche, and Hope D66/18.

Thank you for your help and insight!