This is my first bead blaster since I am new to working on tires. I was a little doubtful of its operation given its smaller volume compared to other more expensive versions. I watched several videos of other brands/types where guys were having to retry over and over with little success. I am more than pleased with this tool. It has worked on the first try on almost all the truck tires that I have mounted so far, most I've had to do it on a single tire was twice. The trigger function as very simple and feels much safer than the quarter turn valve release on others, allows you to keep both hands firmly on the tool when in use. My only complaint is the small gauge can be difficult to read but it doesn't bother me enough to replace with a larger one. That being said the blow off valve worked just fine! One of my favorite tools of the many that I own.
Kevin 
