I have had subscription to 3 similar products and still use the free version of semrush and have used trial versions of others. I I see here is a very good start that may very well turn into a robust full featured offering. To compare it to se ranking or pro rank tracker (of which I have had subscriptions, is a bit of a stretch. But, it very well can get there, and with the app sumo deal, you get a lifetime subscription for the price of about a month of se ranking. So I only give it three tacos, not because anything is seriously wrong with it, but becase it is not "there yet". I will use it for a month, as I have only had it for 3 days and a review was requested. So this is my honest 3 day review. Also, as many people know, changes made in seo take days if not weeks to show changes in rankings. For the price it is worth a shot, and it very well could turn into a treasure. Let's face it, the rankings data is out there, collecting it and providing a useful interface at a realistic price is what's needed. Oh, some keyword research capabilities would be nice.