I think it's very promising and the results speak for themselves. I'm really excited about this.
Though two things:
I would be curious to see how the people who have been treated will look like on long term.
Also I hope they will use it also to treat other mental disorders, I believe it would be effective in other cases as well.

Still, not sure when will this be actually accessible...for example in Europe.

But I love that there is more and more talking about this. There is also this movie/ documentary about MDMA treatments and generally about the effects (not finished yet, but the previews seem interesting): MDMA The Movie