Should I pursue TMS or Spravato?

I recently got a consultation at a place that works with OCD patients. They recently offered me the option to do TMS or Spravato. We are pretty sure my insurance will cover either as I am eligible per the requirements.

Does anyone have experience doing either treatments—or both? Has anyone heard good things about their efficacy? I may be able to do both in the future but have to start with one.