I've done a fair bit of EMDR and it's hard to know what to say about it. It did resolve some of my trauma remarkably quickly. I found it a rough ride at the time, and I really struggled between sessions within a particular 'series'. Once we had a two-hour session and that was much better. Certainly doing it made me anxious too. But those traumas have never haunted me anything like as powerfully again.
I would say that if you are someone who is deep down seeking the healing of connection/attachment in the therapeutic relationship: it is not a substitute for that. It won't fill or remove that need, I believe. And yet I think there are therapists who don't understand or relate to that need (mine was one of them) who see EMDR and other short-mode treatments as a quick-fix or a cure-all. Something to be conscious of.