As a long time Moz user and I might even say a super fan of their product, it feels really odd to be writing a review of Ahrefs. But here we go--I love Ahrefs. The design, the UI, the gigantic keyword database and now the newly redesign site audit are a thing of beauty. I continue to be impressed by the data they provide, features that are added frequently and my favorite feature has to be the top pages report. (Not sure why I love that so much--but it just makes it extremely simple to research a site or competitor with that report.)
Depending on the plan, you are only allowed up to 100 domain searches a day. If you purchase their top tier plan you only get double of that. Sometimes it can take you several days to do certain types of research. This can start to get a little bothersome as we work with several clients and all of them need to use this software to make sure everyone is getting the best work that we have to offer.