Search Engine Land (guest/paying author) is pretty clear that you should not use accessibility overlays (such as #accessiBe, #UserWay, #AudioEye, etc):

“Are you using an accessibility overlay to help disabled users? Don’t!”
searchengineland.com/accessibi…

via @JonAvilaA11y #a11y

Are you using an accessibility overlay to help disabled users? Don’t!

Accessibility overlays are not the answer for sites looking to provide a more inclusive experience for online users with disabilities.

^{Casey Markee (Search Engine Land)}