I started using SellerStats last year. I want to highlight a few positive points: - Good functionality; - Low cost; - Testing options; - Support for multiple platforms (Ozon, Wildberries, and Yandex Market); - User-friendly interface; - Reliable data. I have noticed real benefits from using the service. My income has increased by 30%. This mainly happened due to the elimination of low-profit items and optimization of supplies. I haven't tried new directions yet, but I have analyzed niches. I think I will start experimenting in the summer.