I’ve used a smaller version of this for years. The Ace House and Garden Sprayer was the perfect solution to spraying and defeating the mildew on my porch ceiling. It will also come in handy when it’s time to spray my organic pest deterrents on the gardens. It’s easy to use, but I did need to read the directions thoroughly before I started. It took a little bit of strength to lock the handle in place after pumping, but once I became adept at knowing whether to turn clock-wise or counter clock-wise I had no problems at all.