My Take
Moby is a great tool for the teacher's toolkit, specifically in the world of remediation and allowing students that are ahead to work on advanced content. Other similar programs in the space often made things a bit too wide or complicated for students to really dig in or get into a flow, but Moby balances student-driven and teacher-guided well. It's really easy to get into the surface-level content, but there's a lot to it as you dig deeper into the different modules with a lot of targeted and specific practice available.
How I Use It
We loved using it for stations during remediation time.