Informer

-User friendly
-Allows data to be easily manipulated to create a report that shows exactly what you are looking for.
-The ability to assign Users to Teams and set permissions/access for those users so that they can or can not edit or view other Teams Datasets.
-Useful tools and features that allow you to alter the formatting of the data.
-Easily being able to create a Job and schedule them to run on specific days and times.
-Being able to use Datasources to view the fields within each mapping as well as being able to hide those fields that you do not want end users to use.
-Creating custom expressions for those fields that you need within a specific mapping.
-Amazing visually and gives you a great end result.

-Can be glitchy at times (ex: When editing a Dataset and organizing the columns the way you want them it tends to undo the organization when you go back into the Dataset to edit it).
-Not being able to share a Dataset with a specific user.
-Even as an Admin/Super User I find that I need to change the ownership of a Dataset owned by another user in order to edit the Dataset. Without changing the ownership of the Dataset over to myself I am still able to edit the Dataset but they tend to glitch and will either not show data within the field I am adding for them or the query will fail to run. However, when I change the ownership of the Dataset to myself and make the same changes it works perfectly.
-In Datasources it would be nice to have a column within the mappings that shows a description of the fields that end users are choosing so that there is less confusion.

I like the fact that Informer is able to connect to various databases which makes reporting seamless to the end user. We are currently using it for unidata, SQL and mySQL. Being able to create reports that pull from one or even all 3 databases simultaneously using a web interface has really allowed us to put the power of reporting into the hands of our users and reduced the reliance on IT to create custom reports using Colleague, or another web interface.

The online documentation is not as extensive as many other products. There is a help center, but it seems as though most clients prefer to email support to have questions answered rather than post it to an online forum. I think the biggest improvement that could be made is really building up the forums to make it easier to share resources and get answers to more simple questions.

Our team is pulling data from 4x Postgres databases, Salesforce.com and a few legacy-export CSV files. The reports we create are complicated can contain as many of the above-mentioned sources as we need. If you like the flexibility of SQL and custom code, you can do that. If you want point-and-click, you may lose some of the most advanced function but can probably still get yourself some great charting.

You're going to need a few power users that are comfortable with basic Javascript or SQL to take full advantage of the software. Powerscripts and complex, multi-step build jobs are powerful but somewhat cumbersome, but they do deliver the flexibility to manipulate a report in so many ways.