I have one. It's definitely NOT junk at all, and I've measured loads of my power tubes and preamp tubes. Hundreds actually . It's worked exactly as advertised and never had any issue. Over the years, I've read some people had problems with them, and others have been perfect. I don't want to sell mine, but just figured I'd post a positive experience. I've had it a long time as well. I'd love a Maximatcher set, or Amplitrex, but unless I was a tube dealer it's just not worth my cost. The Orange has been perfect for me. Good luck
Eric