QuartileReviews of quartile.com

Gustavo has been an outstanding transition manager and partner throughout our current project. He consistently demonstrated strong communication skills, explaining each phase of the process clearly and ensuring all stakeholders understood both short-term steps and long-term implications. What stood out most was Gustavo’s genuine effort to understand our broader goals and long-term strategy. He approached every conversation with curiosity and insight, ensuring that the transition aligned not just with immediate deliverables but also with our brand’s overall direction. He also provided excellent strategic input — particularly in how to position a new brand and gain traction on Amazon. His suggestions on content optimization, competitive differentiation, and early brand-building tactics were welcomed and will be implemented. Overall, Gustavo is very personable and exceeded expectations as a transition manager by combining clear communication, strategic understanding, and creative problem-solving. His contributions added real value to our project and looking forward to continue working with him and Quartile team.

Gustavo is extremely responsive and supportive. He consistently works toward our goals and has been a great partner to work with.

I recommend Quartile to everyone. They are great for beginners as well as for experienced sellers. They fit everybody, so it’s worth giving them a try. You just need to have some patience, as the results are not overnight!

Working with Quarlite has been an exceptional experience from start. Thanks to Pedro and Gabriel who were always available and incredibly hands-on, consistently monitoring our ads (even on weekends) to ensure everything was performing at its best. They held regular weekly catch-up calls, clearly explained performance, adjusted strategies when needed, and made sure we stayed aligned with our goals. Their dedication, transparency, and hard work led to amazing results beyond our expectations. We’re truly proud of their services and grateful for the partnership. Looking forward to 2026 with Quartile.

Great so far

Gustavo and Gabriel were great to work with! The Quartile software is a game-changer for Amazon.

We’ve partnered with Quartile for 2 years now, and it’s hard to believe we ever functioned without them. Our account manager, Maria, is transparent, understanding, and genuinely trustworthy, and she’s been instrumental in helping us reach our Amazon ad goals.

We have had a wonderful experience so far using Quartile. We were skeptical at first after not seeing much success with other companies we had worked with, but that all changed within the first month thanks to Edward and Pedro. Edward walked us through the onboarding process and truly made it a stress-free experience. After meeting with Pedro, we developed a game plan tailored to our needs and goals which he implemented immediately. In just a few months, we have seen our ROAS triple. The Quartile app you get access to allows you to easily track how your campaigns are performing. We are very pleased with the entire experience and look forward to working with the Quartile long term team going forward.