I’m a member of the FewReview team. We provide positive reviews and ratings for apps in Google Play, and I believe our service may be really useful for you.
Incentivized traffic is a very common Black Hat ASO technique, used by many developers, including major ones. In short, it allows you to increase your average rating and thus get higher positions in the search results, which, in its turn, will grant a huge growth in the organic traffic.
Our reviews are written by real people, not bots, and are strictly moderated to ensure the highest quality possible.
If you have any questions, feel free to ask in the thread!