The amount of data that Ahrefs provides is staggering. There's more information I am able to get out of it than I will ever be able to use.
I dislike that it's so complex that it's intimidating. However, it is the easiest to use out of all the SEO tools I've used.
Take the time to read through their vast amounts of case studies and blog posts. So useful!
Getting a snapshot of my websites search ranking and performance. The benefits are that I'm able to see where I'm winning and where I'm falling short.