We've taken Writers Workshop, English 1, English 2, English 3, and Advanced Composition. I find the classes to be rigorous and quite a bit of work. I can recommend Mrs. Frederick for sure.
We haven't had any problems with tech issues. Most teachers respond promptly to emails.
My son took Aviation Science, Python, and Logo to Lego. I wasn't as impressed with the grading and administration of Python and Logo to Lego. The Aviation Science class was right up my son's alley. I'd recommend that one.
I've heard great things about the Photography, French, and CAD teachers.
Maybe if you ask about specific teachers, you might get a good response.