I have a couple of hand held sprayers and they are good. And the Tornado 4 Gallon Battery Powered Backpack Sprayer is just an awesome upgrade, I am glad I have upgraded so let me explain*** The sprayer arrived complete, this version comes with one battery and there is another version to consider and that one has an adapter that can use both Milwaukee and Dewalt batteries. Anyway, the sprayer also comes with instructions with pictures, different nozzles and the backpack part, the battery and its charger. It was easy to put together and get it ready to work*** The 18V Lithium-ion battery gives up to 2 hours of continuous spraying and that is more than enough for me and best of all, the battery has a button and it is an indicator on the battery life, from one led to all 5 LEDs to let me know it is fully charged. The LEDs also let me know when to charge it and how much life it has left before I have to charge it*** I also like that it is easy to use, the hose is the right length and the handle is comfortable to hold, the handle can be locked for continuous spraying, best of all there is no need to manually pump*** The 3 nozzles included are great, the adjustable, the 45 degree fan and the 0 degree pin stream are useful for different uses. It sprays up to 25 feet both vertically and horizontally so it is much easier to reach without being so close and getting anything on me*** Another thing to like is how quiet it is, not only does it have plenty of power, it is quiet while doing so, I do not have to use my noise cancelling headset, but I wear them anyway***. It feels of good quality, it is solid and well made. The tank is translucent to see how much liquid is in it while it is strong to hold different types of chemicals including pesticides and disinfectants*** The sprayer can be left on its side of the tank or on top for easy to reach and easy to store away*** Overall, I like that I do not need to manually pump any longer, it is also easy to use, the Tornado 4 Gallon Sprayer is reliable, versatile and efficient for my every year projects and more***