Works well so far. Several months have passed. I don't use this machine every day. Build quality is pretty good. Brass has a significant weight. I don't know how it will hold up to daily use, but with weekly use it will last quite a while. .
Pros
▶ Screws directly into Argon, Argon/CO2 and Helium cylinders. The square flow tube reads 0 to 50 cfh and has a large 1 1/2 inch gauge that reads 0 to 4000 psi so you know how much is left in your tank.