Get Product Feed Insights: While Google AdWords may use keywords to decide if an ad should be shown product listing ads tend to manipulate the product feeds. So, the competition’s PLA feed is a secret, but that’s where this feature comes in. The Position Report generated shows keywords that are signaling their listing to show ads, their PLA’s ranking in search results, the PLAs that are popping up for each keyword, and a promoted product’s price and title amongst a few other things.
There are other parts of SEO which you should pay attention to after your audit to make sure you stay competitive. After all, the technical foundation isn't the end of the road for SEO success. It's important to pay attention to your competition's SEO activity, keep an eye on the newest search engine best practices, and maintain local SEO best practices if your business depends on customers visiting a physical address. All of these are elements of a successful SEO strategy and should be corollary to your audit and ongoing SEO maintenance.
Pavan, I would suggest you to give a try to it. Its a win-win situation for you as you will have free access to SEMrush pro version worth $47 for 14 days and you are not going to lose anything. If you like it, continue using it. With the kind of features SEMrush is offering, there is no alternative as such. With SEMrush, you can track 500 keywords with Pro version (price $99.95) and with Moz, you have to pay $99 for tracking 300 keywords only. So feature wise, SEMrush is much better than Moz or any other SEO/SEM tool available in the market.