Thanks for your question – and welcome to the course!
Like Beth, I enjoy a lot about the role, but I think for me is the variety of the role. In some ways this is similar to teaching (i.e. different students, lessons, levels, material, aims, needs, etc), but for me teacher training includes an even greater variety – since we are both working with teachers and learners! I’ll echo Beth’s comments about seeing progress too – again this is very similar to working with language learners.