I used their big brother, GBS-135F25AL02-04, in a friend's car. Overall, I thought they were nice. They played cleanly beyond their Xmax and overall had a pleasant presentation.
Michael Chua has done several designs for them here.
https://ampslab-spk.com/2020/09/28/peerless-gbs85/
https://ampslab-spk.com/2020/09/28/peerless-gbs85/