Web access to Active Directory, and access do non-admins to admin tasks;
Start free, and later buy it;
May install even in a desktop;
Sometimes slow to browse and limitations in free version
With more than one AD server, sometimes crash in user sync. The results are some new users not being displayed in reports for example;
If you have problems managing your AD environment, try it. It just works. And it's easy to setup. A simple admin user and you're good to go. And you may start in a simple server or even in your own machine;
you may delegate the access to other user, per OU or per many OUs, and they're very easy to setup and limit the access. The reports also, are a great stuff. One of the main benefits are the workflow options. You may have users for your manager, for example and create a flow that allow to give access to new users and have the user created based in a template, inside a OU, with user groups already defined, naming templates, etc. And the best, it works!!!!!
About the support, i needed twice, and in both opportunities they were fast to answer all question, and came with single files that solved my problem really fast. But this created some trouble with upgrading the versions. But, they also helped to solve quickly.