Professor Fisher is greatly entertaining and knowledgeable in a variety of topics concerning thermodynamics and the engineering world at large. He is easy to reach, and willing to help during office hours. I would definitely take another class with him just because it was fun to be there.

That being said, it really feels like an upper-division STEM course in the sense that you are responsible for the majority of your learning. Lectures seem helpful, but once you start homework, you realize there's layers of depth that Fisher hasn't covered. Discussions are helpful because you can see a few examples done, but really, textbook reading and office hours are implicitly mandatory.

The group design project is actually pretty interesting, though if you don't work with other motivated people you'll definitely struggle, as it is not an easy assignment. Side note, but Colab absolutely sucks and is the worst, most annoying coding software I've worked with. That is the one thing I wish was changed about the project. Start early, ask lots of questions both to the professor and the TA responsible for grading your project, and you'll be fine.

Depending on your confidence in thermodynamics, the class might be more or less difficult, but regardless the worst thing you can do in this class is fall behind. Don't underestimate the course, there is a difficulty spike as soon as you start mixtures and chemical equilibrium. It's doable, just tread carefully.