I picked them up to try out partly on advice & the review referenced, and I think this post.
IME these hit way about their price point.
"Birder sites" and other reviewers get paid to give products more favorable reviews, fyi.
Doesn't mean the product isn't good, nor bad, but published reviews are rarely "unbiased."
In my business we often pay $30k, and more; up to over six-figures, for industry shills to give favorable, unbiased, reviews.