The tool is well made and works just as it should.
Some compatibility info: the tool comes with a Japanese air quick connect fitting that uses 1/4" bspt thread. BSPT is not compatible with npt (different thread pitch, different taper). If the Japanese quick connect fitting isn't common in your region you will need a 1/4" bspt male to 1/4" npt female adapter to use your preferred quick connect fitting. Also, the tool comes with a fuel rail test port adapter for GM vehicles but not the smaller Schrader adapter for fuel rail test ports that are common on Ford vehicles.