I am a big fan of BG's planar tweeters, but I don't know anything about that specific speaker. Triad would also be made in the USA, though a more traditional design.

The thing that I am skeptical about regarding the BG speakers, is they are essentially creating a first order reflection (maybe the wrong term) on the front wall, and calling it good. They don't know how far the speakers will be mounted from the front wall, nor do they seem to care. It seems you would end up with sound, including vocals, arriving out of time intentionally.

I may be wrong, but it seems like one of those ideas that was born out of marketing, not science.