Really like it for being one of the most user-friendly SEO platforms for beginners.
no content research tool
The level of detail you can gather from this tool is amazing. You can research a competitors' online presence and get data such as their backlink profile, organic keyword visibility, most popular keywords they rank for, etc. All of this is just focusing on your competitors.
For your own target website, keywords can be grouped together and positions checked with the click of a button. I like that in addition to Google, you can check Bing, Yahoo, and Yandex positions. You can also specify a region for Google or how mobile rankings are affected (if at all).
The cost vs the value of SE Ranking is the best that I've discovered thus far is the best i've seen for an SEO tool.
Great for Keyword and Competitor Research
Mobile App is less to be desired