My sole complaint about NS 2015 is that when it's installed it can take forever to close a pop up window.
Here's a link to News Now UK. It's an excellent 24/7 international news aggregator that pushes updates every 5 minutes or so. The link is to it's Security category that I often look at. When you click on a link to a story a window will open and the story will appear. It's when I try to close that window that it takes forever to close only when I have NS 2015 installed.
http://www.newsnow.co.uk/h/Technology/Security