The service is not a universal solution. Don't think that by investing a small amount, you will instantly get a lot of sales and recoup your investments, repeating this process endlessly. First of all, you will need to invest a significant amount. To test any sales model, you will need at least 50-60 thousand, and it's better to start with 100 thousand, especially if you are a small seller. Secondly, there is no guarantee that the chosen model will be profitable. There are many factors: specific products, publishers, collaboration models, and so on. For example, you can minimize risks by paying only for actual sales (with a monthly hold in case of fraud for greater security). Alternatively, you can take a risk and pay for clicks to the product page (there's an interesting tool for adjusting bids based on traffic quality), but there will be no guarantees of sales. Also, many are now ordering reviews and product overviews in exchange for barter, which can also bring income, but only in the long term. Overall, there are many opportunities, but you need to know how to work effectively.
