I purchased RankTracker and another SEO tracking tool here on AppSumo at the same time. After redeeming and setting up both, RankTracker gave immediate results. It has a clean UI, and lots of data. I'm still trying to make sense of everything a week later. I love the little info boxes with explanations of the displayed data.

(I immediately refunded the other product because I couldn't get that one to work. Not saying it was the software's fault but that product was too complicated.)

I like RankTracker. I've never been a power user of keyword ranking software despite having purchased SerpStat which disappointed in the long-run, and having used SERanking and finding it too expensive.

RankTracker is making me a fan with it's keyword & competition research tools. I also like the PPC Savings tracker.

I held off on reviewing until Ranktracker had some time to gather relevant data. In the beginning there were some boxes with numbers but no breakdown, like in the Website Audit results. Now it's chock full of recommended fixes. Honestly I love working with SiteGuru for the drilldown in these areas, but if the audit can be included in the reports then it's handy to have in the same software. I have yet to run a report since it's early days, but I did not see the audit as an option to be included.

Overall, Ranktracker is a Win for me!