A small question about MOZ

Hi all. Thanks to those who suggested in which section to ask a question) Can someone tell me about the work of https://moz.com and give advice on how this tool will be a "really great helper" for SEO? I have a couple of blogs, so I decided to ask the guru about this tool, because the reviews are mostly positive.

People mainly use these types of services for backlink spying. Such as, to spy your competitor's backlink profile and then trying to get the link from the sources. And also, for keyword research purpose to look for profitable low competition keywords and many other things..