Quartile Reviews 511

Sales went up. ACoS improved. Eric was easy to work with.

Great team and service. Unparalleled results with our Amazon ads.

Joining Quartile was easy. They have talented team members who keep us informed, schedule meetings, and monitor our account progress. We had a great experience communicating with Gustavo, who was friendly, knowledgeable, and always responded in a timely, professional manner.

Very detailed reporting and constant communication.

Very happy with the service.

Quartile and my account manager Augusto/Rafael have been nothing short of remarkable for my business. They've been very mindful of intelligent growth, managing ROAS, and TACoS effectively while providing thoughtful suggestions to optimize. I've been very satisfied with the Quartile team and their product suite and would continue to use them for all of my products going forward.

How helpful and friendly everyone are. Gustavo has been great at showing and explaining how Quartile works.

Our account manager is very responsive and is able to meet metric objectives while staying in line with our business goals. The team brings us feedback and suggestions for where we can grow and remain efficient in spend, and also listens and responds very quickly when any issues have arisen. They are awesome to work with!!

Gustavo from the launch team has been incredibly knowledgeable and helpful. In short order he's been able to get our account humming and our ACOS under control.

Gustavo Fornari is fantastic at sharing details and how the plan works. He has brought us clear growth within the first 2 weeks and we are excited.

Quartile was a great choice for our company when it came time to switch things up. We have seen a difference in our profit margins since working with Quartile. Our account manager takes all information about our business into consideration when creating campaigns and guiding us to success. She listens to what has been successful strategies in the past and what did not work for us. She constantly gives feedback on where we can improve. Our business is better situated to be successful with the help of Quartile.

We have been with Quartile for a few months and the experience so far has been great! Our onboarding liaision Luiz Italiano was knoweldgeable and attentive. We look forward to continuing to work with them.

Fabio has been great helping me get my ad account headed in the right direction

The team at Quartile have been excellent to work with. They are professional and well prepared to help optimize your business.

Fabio was fabulously effective in driving up sales. Thank you Fabio for the 40% growth year over year. I had gone with other Major "machine learning" and "AI" ad platforms (not mentioning names but first letter of that firm starts with "T") that where triple the cost but did not get the results you got in 30 days. Thanks to the unassuming professional sales team, especially Livia and William for never giving up on contacting me. To the top sales manager that makes sure your CRM is working. You would not have gotten me on board without a working CRM. Thank you to the ownership of Quartile, you run a real good company, and I am grateful for the immediate progress. Thanks to your team effort we will double our sales within 6 months.

To the entrepreneurs out there, please know that 95% of all ad agencies are run by moneygrubbing and shameless guys, they have minimum training, no systems and will spend your money aggressively or miss opportunities.

Go with Quartile for your own good if you want to drive sales on Amazon.

We have recently launched our Brand on Amazon US Marketplace. Quartile Team Members Pedro and Gabriel gave a good initial start for our brand. Looking forward for greater collaboration in coming days

Quartile has been an absolute game changer for us at Spread The Love. Since partnering with them, our sales are up and our ACOS is down significantly — the kind of results we’ve been striving for but couldn’t quite hit on our own.

A huge part of this success comes down to our Technical Account Manager, Fabio Brauner. Fabio has been outstanding — proactive, detail-oriented, and always willing to dig into the numbers with us. His expertise and responsiveness make us feel like we have a true partner invested in our growth, not just another vendor.

Quartile’s platform combined with Fabio’s support has taken our Amazon advertising performance to the next level. We highly recommend Quartile to any brand looking to scale smarter and achieve measurable results.

Gustavo has been great, his is very good at what he does and he does a great job explaining all the details. Software is working great, I am pleasantly surprised at how good it actually is.

Great service and product

From start to finish, the communication and guidance were absolutely flawless. Marina and Alexander made the entire process feel smooth, transparent, and comfortable. They walked me through every stage with patience and clarity, always making sure I felt confident about the next steps. Not only are they super professional, but they also bring a personal touch that’s rare in this kind of business. You can tell they genuinely care about their clients' success, and that makes all the difference. I’m really happy with my experience and highly recommend working with Quartile, especially if you value great support and results. Muchas gracias Marina and Alexander!

Very good communication