Brightspace

As a college student, I have used D2L for 3 years. I have taken a handful of all online classes whose only presence was via Brightspace. Brightspace has created a really nice online environment for classes, you can host all your content there, provide quizzes/tests within Brightspace. Theres even a discussion board for talking with other class members or the instructor. I like being able to work at my own pace, which is what an online class provides, and Brightspace provides all the features to host a well developed online class.

Auto-saving responses on tests doesn't work always. This is a relatively new feature though so, I'm sure it will get fixed soon.

Nothing at all.
The LMS has a LONG list of features but nearly all of them are poorly designed and frustrating to use.
I have moved back to old solutions that I used before I was given this piece of software.
Clearly no teachers with any experience were consulted in the design of this.
There was a huge opportunity for D2L when they moved from their old solution to a new Cloud based one. They missed the opportunity

The interface was not intuitive. There were very few clear best practices in the interface. The way that you complete tasks changes depending on which part of the interface you are using.
Non-technical users will become quickly frustrated with the number of steps required to complete even the most basic of tasks.
The interface feels like it was built by different groups of developers and designers who didn't communicate with each other. Every developer had their own idea about how to accomplish a task.
Many default options are counter to what an actual teacher would need in their day-to-day tasks.
Nothing in the interface saves you work.
Every task prolongs how long it takes me to do something.
After months of trying to use this tool I have given up and am now searching for alternative tools that make my life easier not harder.

I like that Brightspace is easy to use. In previous online courses, we had used another program, which was a hot mess. Brightspace is user-friendly and really easy to find what you're looking for. The useability, however, depends mainly on the professor/teacher/whoever that may set up the course. Currently, everything is laid out in weeks, so each "module" contains what is due that week. Very simple to use, from a student standpoint.

I have noticed that when posting/replying to a discussion board, there are no notifications. And by this I mean there are no "push" notifications, so it's sometimes hard to see if people are responding to my post. Once I log in on a desktop/laptop, I can easily see if people have responded. However, if I'm using the app on my phone, it doesn't necessarily "pop up" and say that someone commented or posted something new. I personally would like a notification when this happens.