I have a window that is much larger than what the dimensions of this rod offers.  However, I loved the lines of the "bell" shape so much that I devised a way to make it work.  I ended up purchasing 2 smaller sizes and left a gap midway between the large window.  After all, many times we simply leave the curtains open.  So, why not get what you love and make it work?  I love the end result!