I have been using NARS Sheer Glow Foundation on and off for about a year now. It is one of the best foundations I have ever tried. The reason I wanted to rave about it now is because it has been especially great for me during the last couple months. I get really pale in the winter and I have the hardest time finding a foundation that is light enough for my skin-tone and will blend in flawlessly. This second to lightest shade, Mont Blanc, is a perfect match for me and finish of this foundation is gorgeous.
The NARS Sheer Glow foundation is described as a satin-finish foundation with sheer and buildable coverage. It is one of those foundations that does not need a setting powder to look finished although I usually like to set it with my mineralize skinfinish natural by MAC. It contains no SPF so it is great for taking photographs, especially with flash. I would consider it a light-medium coverage foundation as it provides coverage but still looks very natural. My only complaint is that the foundation doesn't come with a pump, so it is easy to waste product when pouring it out of the container. NARS recently started selling pumps for the foundations on their website, so I may be ordering one soon :) If you are curious to try out this foundation, I highly recommend you ask for a sample at your local counter. Let me know your thoughts on NARS Sheer Glow Foundation.