I have been using SEO Maixmus for a week now and I have to say that it works. The reporting is awesome. Support is quick. Yes, you have to use an indexing service to index your backlinks, else you will not be able to see quick results.
Right now, I am using only one site to check the waters. So far I'm really happy with the quality of the services. Whatever these guys do, you know it because the report is available right next day. As far as backlinks is concerned, this service is the best one. I have used many other services but I have to say that this is the best one because the links you get are of real value. The movement in serps can be seen in a week.
Great service.