Works as advertised. It is great to keep spraying without continually stoping to hand pump it. It could be improved. You can not see through the side so it needs a translucent strip up the side so you can tell how much fluid is in it both when you are filling it and when you are using it. It needs a backpack accessory for carrying it because it hurts your hand to carry it by the handle (wear a glove) and with the shoulder strap it continues to bounce off of your leg as you walk.