
The thing that stands out most is the breadth-plus-currency combination. Because the catalog is built from a huge marketplace of independent instructors, tooling and platform topics show up there faster than in traditionally authored corporate libraries, where a course has to be commissioned, scripted, and produced. If someone needs a working introduction to a tool that shipped eighteen months ago, Udemy usually has something, and often several options at different depths. Review collected by and hosted on G2.com.
The biggest problem, from an instructional design standpoint, is that the marketplace model optimizes for the wrong signal. Instructor revenue tracks enrollments and ratings, and ratings correlate with production polish and likability far more than with learning gains. So you get a catalog where the popular courses are often the pleasant ones, not the effective ones. Nothing in the incentive structure rewards an instructor for building hard retrieval practice or honest assessment, because those make learners feel worse in the moment. Review collected by and hosted on G2.com.