Anyone been treated for depression with TMS (Transcranial Magnetic Stimulation)?

I've done therapy for several years and I've been prescribed anti-depressant medications as well. Recently, my therapist recommend I do TMS but I've since found out that my insurance won't pay for it because it's been deemed "experimental". TMS is very expensive so I was wondering if anyone had done it before or knew someone who'd done it and if it helped them.