We used these this past semester during our Panopto pilot and found that they worked pretty well. The audio recording quality isn't as good as a Revolabs xTag, but is still pretty good. The biggest issue we had with the mic was the paring with the OS. From a scale of 1-10, I'd give it a 6 because of the recording quality and the pairing issue.
These BT mics were used during manual recordings inside and outside of the classroom.