We have about 1/5 acres of property around our house and shop, and spraying for weeds is a yearly chore. Generally we use a 2 gallon Hudson-type sprayer, which is light enough to carry around, but the constant pumping gets tiring. This 4 gallon spray tank with electric pump, a rechargeable battery, and wheels makes the job 10 times easier and faster. Whereas before, I'd generally go through 4 gallons (two rounds) with the 2 gallon manual sprayer, I can lay down 3 to 4 rounds (12 to 16 gallons) with the Vevor 4 gallon sprayer in the same amount of time. It is advertised as a backpack sprayer, but we have only used it as a pull cart. The electric pump allows an even flow of chemicals, unlike the manual pump models, which tend to drop pressure and require frequent repressurizing. I couldn't be happier with this unit. It is holding up very well after a couple months usage. The exact same unit is available elsewhere for just about 300 dollars, there is no reason to spend that much, right now, Vevor has it on sale for about 120 dollars, which is a no-brainer. It was a game changer for us.