The price here is great, and this product is best in class.
A lot of aftermarket fuel and oil additives are genuinely hokum, snake oil, and nonsense. Many are just naphtha or some other solvent, with fancy made up performance words printed on it.
Techron is a state of the art fuel system cleanser Chevron developed twenty years ago that has defined the standard of clean for fuel. For years, the big-3 automakers would truck in Chevron's gas with Techron from hundreds of miles away (not sold in Michigan) to run in their cars for official EPA testing. Moreover, even the Mercedes Benz mechanic manual calls for the use of concentrated Techron to clean out certain fuel issues. This stuff is the real deal.
So if your car is older, has used questionable gasoline, and could use some extra cleaning power to make sure the injectors and valves are clean and free of deposits that can interfere with good, clean running, this product is a valuable tool to help clean things up and keep the engine running well.
This is stuff that I trust.