I have used this site many times, especially for printing graph paper and a wide variety of linear graphing problems. I've also recently discovered that there are lots of other subjects and topics to pick from. There are create-your-own word searches, Sudoku, and other puzzles.
What I love most is how clean, crisp, and professional the sheets look after sorting through the vast array of options. The final product is much better and quicker than what I could've spent hours working on myself. This site does a great job!
Knowing that it is in the beta stage of development, I can't wait to see what the final product looks like. Here is a screen shot (below) of the many topics to choose from.