I wasn't completely happy with this curtain.  I ordered the natural color, thinking it would be more like natural color as in a painters cloth.  When the curtain arrived I anxiously hung them to my window.  The natural color is more of a vanilla color, giving off a more yellow tone.  
The fabric looks to be of quality and if your looking for something to keep the cold air at bay I would recommend this curtain.  It also, keeps out a lot of light too.
However, they state they are 84" in length.  I found out that's from top to bottom.  If your curtain rod is set up for a 84" curtain, it will hang about 2 inches off the floor.  You have to consider the measurement isn't from the inside of the top of the grommet where it actually sits on the curtain rod.