The algorithm is a black box The algorithm is a black box. You don’t know why bids are changing or which campaigns/products were going to be pushed aggressively. Everyday was a surprise to see what products had a disproportionate amount of ad spend for the previous day. I couldn’t effectively manage the algorithm based on my products margins and inventory position. Sometimes the algorithm would stop spending on certain campaigns altogether by reducing bids to 2 cents. I had to relaunch those campaigns. By the end I was spending similar amount of time trying to manage the algorithm as I did on managing my PPC before.

Easy to learn and use, helped us scale fast We started using Quartile in July (5 months ago) and it has worked so well for us. We had previously been managing individual campaigns on Amazon manually in the advertising console. Quartile's software is pretty easy to use and has helped us scale fast and lower our ad costs.

Poor performance and Fraudulent… Poor performance and Fraudulent transaction. I tried Quartile for Amazon PPC maintenance. I was offered 50% discount for first three month with no contract and I was told I can cancel anytime. After wasting one month and £500 and lots of sale I decided not to continue however I was surprised when I was charged another £500 for second month without my consent. I was shocked how they got access to my card detail. I only made payment once at the beginning of first month with the link provided by quartile however I didn’t enter my card detail it took money directly from my bank. But again when I was charged at the beginning second month I contacted them to cancel which they did but told me there will be no refund for money as you need to give us 30 days notice. Dear I didn’t use your service I tried you for first month and I do not like your performance so I do not want to continue for second month. How can I give you notice of 30days before even trying you for first 30 days. This company is a fraud as you signup their portal will take two days weeks to import data from your Amazon account and then they will start working on campaigns so they will launch first campaign after 20 days of subscription. The performance is very poor please do not signup with them. You will get 100s of email and phone call when you signing up and then there they will contact you once a week so there is no communication and you can’t get hold of them specially if you are not based in USA. however if you decide to cancel the subscription you will be charge for the whole month in advance and no one will respond your email. God bless you all stay away from gold digger

5 Stars! I've had an exceptional experience working with Quartile for my Amazon Advertising needs. From the moment I engaged with their team, I was impressed by their professionalism and dedication to delivering results. My Account Manager has been incredibly knowledgeable, proactive, and attentive, ensuring that my advertising campaigns are optimized for success. The regular communication and insights provided during our calls have been invaluable in driving the growth of my business. Quartile's strategic recommendations have not only improved the performance of our existing campaigns but have also enabled us to successfully launch new products with confidence. I highly recommend Quartile to anyone looking to elevate their Amazon advertising efforts. Their team goes above and beyond to deliver exceptional service and results, and I look forward to continuing to partner with them for years to come. Five stars all the way!

Great ad management and customer service We have been using Quartile for quite some time now and are very happy with their performance. They are easy to work with, communicate well, and show results!