I have always found HP5 to be very sharp (acutance) and very forgiving of exposure. It also holds highights very well. In a staining dev it is VERY hard to blow highlights. Like TriX it has a gritty look that suits urban images. Like Trix it can be pushed to 1600 or so. Deevelop it in pretty much anything....perceptol @ISO 200 for surprisingly fine grain or ID11 1+1 for general use. The acid test is which prints just have that sparkle. Most of my HP5 prints do, though I am conservative on the degreee of enlargement.