This paper is of excellent quality. Amazon now correctly describes the product as being a single 500 sheet pack for the price. I almost never get paper jams with this product, and the quality is superb.
In the old days it was the age old question of 2B or not 2B. But then I discovered these 4B pencils which are absolutely perfect for sketching music because, given the correct eraser, it is so easy to rub out what is on the page and add second thoughts or corrections without leaving a mess behind.