These nozzles have significantly improved my spray foam application, particularly for vertical and overhead surfaces. The precision wedge spray pattern is fantastic for achieving consistent and even coverage, eliminating the frustrating inconsistencies I've experienced with other nozzles. The ability to switch between vertical and horizontal spray patterns with ease is a huge time-saver, and the overall build quality of the nozzles feels durable and reliable. The results speak for themselves: cleaner, more efficient, and more professional-looking spray foam applications.