I like that it's easy to use, makes my job easier when finding people who are interested in purchasing products from me. It also helps with customer service as well! There may be some bugs or kinks at this time but they're working hard on fixing them so far haven't really had any problems myself personally, great tool for anyone looking into selling their own product/brand through amazon marketplace. Amzshark has helped us grow our sales exponentially by offering suggestions of what we should sell next which is very helpful especially if you know nothing about your niche market yet. We get more customers coming to our site and making purchases because there was no other way to find out information regarding those new users. Also getting ideas off the website itself rather than having an outside person offer advice (like many websites do). Now just need to keep up with all.