After two weeks of using RankTracker, I'm impressed with the output and functionality.

Keyword Tracking:
First and foremost, the keyword tracking results are spot on. I've performed several spot checks manually the results all match up.

User Interface:
The interface is clean, intuitive, distraction-free and easy to navigate.

Keyword Discovery:
The keyword discovery tool is decent. Although, the "Idea" function (tab) output has left me scratching my head on numerous occasions.

Website Audits:
The website audit results and suggestions are easy to follow and will assist in addressing typical website foundation issues. However, I have come across a few health check results that are incorrect.

I'd like to be able to crawl more than 100 pages per audit, and it would be ideal if it identified internal link equity metrics to aid in gaining quick wins from an improved internal linking structure.

Overall, RankTrackers primary function of tracking keywords is excellent. The other tools it provides are decent, making it a well-rounded product.

RankTracker is easily worth the small investment, and the options to upgrade/downgrade make it a no-brainer, in my opinion.