I bought two of these, one didn't work at all from the beginning. The other works, but the mechanism that lets you use it upside down is no as good as the standard sprayers I modified myself.
I love this sprayer. It works so well. I was looking for something like this when I first purchased my horse. It was annoying not to be able to work from different angles when I wanted to get a good spray on hard to reach areas. I purchased two of these to use with my Endure spray for summer and my Jeffers tail and mane detangler. They work flawlessly. I dont have any issue with clogging and even when low liquid it still works as well as if it is full. My only small problem I can have is how big they are! This can be a blessing or a curse. I love that it holds so much liquid, not many do. So it definitely cuts down on having to refill it as often. The downside is, that if you are using it for a while your hand does start to get tired. My way around this is Ill only fill it half full. However, for lighter quicker jobs, Ill fill it up all the way and take advantage of how big it is.