I was skeptical at first, but after reading reviews and wanting to try something different... this was a good and cheap investment. For years, I have been using and constantly buying 2gallon sprayers, in which only lasts 1 season because the wands always either cracks or leaks. Sometimes its hard to measure out correct amount of formula.. Can't believe I have been wasting all these years, now I stumbled on such a simple & convenient  gadget as the glimour nozzle sprayer. I have used this so far 2 times, for killing weeds & grass from asphalt driveway &  rocked driveway. Very easy setup, pouring the correct amount in ounces & setting dial to 10. Works out great so far, very fast & easy spray results than using pumped sprayers. In my opinion this also sprays evenly.