DD has enjoyed drama, and being away from the classroom in a different environment. I think it would impact on others if she isn't committed though, there is a lot of team work.
She would have done drama and music if timetabling allowed, I'd have had no problem with that, plenty of other subjects.
DS did music. He enjoyed it. He found the performance part easy, (full marks), the composition was a bit harder. Teamwork not so much of an issue, the group piece can be a duet with a teacher. He would say it was one of the hardest GCSEs he did.
Geography he said was a bit of a slog, lots of case studies to learn. But he enjoyed it, and enjoyed the field trips.
RS he did short course, and said it was his easiest GCSE. And interesting. He got the same grade for all of these three GCSEs.
Obviously these experiences are all old style GCSEs.