So many times I see the advice, "Use a good quality..." something or other. No brand or product name is ever specified.
Use a good quality caulk... Use a good quality tape... Use a good quality glue... Use a good quality paint... Use a good quality brush...
I don't know about you, but when I go anywhere and ask if their product is good quality, they NEVER say no. Even when I know for a fact that the product is garbage, and I'm just testing the knowledge/ loyalty of the employee.
So how do you know what's a good quality product? More expensive doesn't mean better, that's for sure. Flashy logos and aggressive marketing don't indicate a quality product.
You certainly can't trust the person in the apron at the store. Everything they sell is top quality according to them.
Your friends, neighbors and professionals seem to think that it's illegal to tell you what they used on their projects, because they won't give you a specific product name. They just say "use a good quality..."