I've tried a number of other lubricants and continue to go back to Tri-Flow. It's much thinner than many others, so you must apply it more often, but you also avoid collecting a lot of gunk which happens when using thicker lubricants.
Here in the Pacific Northwest, even if you just ride the roads, there is winter gunk year round. With the thicker lubricants you only have to apply them occasionally, but you have to totally clean your chain when reapplying. With the thinner lubricants like Tri-Flow, you collect much less road grime on the chain and rarely have to do a total clean-up of the chain.
And it's half the price of others. Need I say more?
Iv'e been using this lube for 20 years and never had a gripe.
It offers the same protection and benefits as Dumonde without the expensive pricetag ! It even smells the same as Dumonde ! I ride in the city and clean and lube once a Month. I This lube makes my drivetrain run smooth and quiet, the best hands down !