I like how easy it is to use, you can get some great insights about where people are linking from without having any technical knowledge or experience with SEO tools! There's nothing that really needs improvement at this time - just make sure not go too crazy when adding new domains/domains in general because they do slow down their servers quite heavily if there isn't enough room for them all (I think). It gives me insight into what my competition might be doing behind closed doors which helps give an advantage over those who don’t know as much but still try hard.