The Grid Designer has many features that one can choose, you will be simply spoilt for choice. It helps you design grids that will be crucial in organizing your web design and making your website look more professional. The possibilities are for you to explore.
To top it all off and to make it even simpler to use, the Grid Designer even has a web-ready resolution and an instant online render engine that shows you exactly how it will look like as you are making it which in turn makes it easier for you to convert it to real web use and test it out, as well as a transparent background so you can see what you are doing and test it against different backgrounds even while you are making it. The ease of which this is used definitely makes it popular and a must-use program if ever you need to design a grid.