Product review (3 stars): Read all the reviews: CO2 Regulator is built to questionable standards.
I chose this kit for the two product potential, and the cost effectiveness of owning a CO2 tank. In my area, it costs $30+ for CO2 tank exchange. However, I am able fill my tank at a fire-safety store for $10.83. The marginal cost from tank exchanging is significant enough to justify buying the tank, which will pay for itself within a year.

For the most part, the overall quality of this kit deserves 5 stars. In contrast, the regulator is built to shoddy standards. The unit itself (without peripheral plumbing attached) is fine, I find it intuitive and easily fine tuned. However, the ball valve housings for the individual co2 shut-off valves are made of light-duty alloy.

Here, you will find a failure to install thread locker or pipe-tape to these materials, allowing for considerable air leaks. Also, these ball valve housings easily sheer off, leaving the threaded portion of the housing coiled into the "two product" y-trap and rendering the materials useless. I would suggest purchasing a quality set of ball-valves to complete this build.