I have a bunch of devices (off the shelf, and custom built) and built neuro-experiences used by thousands of people.

Neurosky is by far the worst. It’s nearly random. From the low cost devices, Muse (1 or 2) is by far the best.

UX, wearability, comfort, electric signal.

Tried that years ago and couldn’t get it to recognize much, very noisy

since chip-shortage, which price is it now?