Transcranial Magnetic Stimulation Therapy: What's your experience?

I am considering TMS Therapy. I have lived with depression and OCD all my life. I was finally diagnosed with Major Depression Disorder at 60, and recently was suggested that I probably am OCD as well (I wasn't surprised). My insurance will cover it, but my deductible is higher than the cost of 36 sessions. It was not affordable so once again I lost hope. Fortunately the clinic I am exploring offered me another option which I can afford. My questions are:
1. What has your experience been (I have read many of the comments already posted).
2. The clinic I am looking at is recommending 36 sessions, 2 sessions per week. Everything I am reading is folks are doing it 5 days a week. Does anyone have any experience at a lower weekly treatment rate? I believe they are suggesting this to help with my cash flow.

I am on the fence. It is still a significant amount of money for a treatment that may or may not work. I did ketamine therapy and it lasted about a year and then I experienced a deeply traumatic event and it was like gone. That treatment was not cheap either and insurance would not cover it.

Thanks in advance for any advice/comments you can provide.