When the professionalism of the marketing increases, customers will feel that (or like) the product is greater.
I need to say this sentence in a more native way. After reading about "the more ... the more" role, I feel like it could be better than the previous sentence. But I still don't know how to construct it.
The more professional your marketing is, the greater your product is.
But I actually didn't mean that the product will be greater. The product is the same. It is just a feeling of the customer but I don't know how to add it to the sentence. Here are my trials and let me know which one is correct please.
The more professional your marketing is, the greater your product they feel.
The more professional your marketing is, they feel the greater your product is.
The more professional your marketing is, the more they feel great about your product.
The more professional your marketing is, the greater they feel about your product.
We don't have to use "the more" role. So, please feel welcomed if you have any other suggestions.