I haven't tried it, but my Pdoc did suggest it. I
asked a question about it here a while back and got some replies from people who do have experience with TMS. My conclusion from that and other research was that TMS seems more like a hype than a well-established method at this point. I decided to go for ECT because it has a proven track record and I want to maximize my chances of having a working treatment ASAP. Granted, ECT has more significant side effects, but when I'm feeling bad enough to go for either approach then I can't afford to waste time on unproven methods.