Review (5/5): It works great
I got this especially because it said it would spray upside down- and it does! I wish the spray was adjustable, though. It’s a little wider than I would like. I’m using it to spray a vinegar/water solution on my dog who has skin issues, and the ability to get underneath to spray her whole underbelly is really great. The pump is good quality with strong suction and seems like it will last a long time.