Adrian,
I bought one a few years ago as a means of using-up a birthday gift of an on-line voucher. Definitely more fun than spending it on a T-shirt or groceries.
Much improvement to listening when placing it alongside AC/DC radios with internally wound antennas such as my DAC90A and Defiant (Champion Meteor/Comet).
But, I've also tried using a 3-pole Mini Jack plug to connect it to other sets with Aerial and Earth sockets, such as my Wartime Civilian set and Ekco A22. Despite trying various connection combinations, the loop is always out-performed by a 2m length of wire dangling around the curtain rail!
As Merlin Maxwell says, try building Dr George Smart's Loop, much more useful.
https://www.vintage-radio.net/forum/...d.php?t=169949
One day, Merlin's going to show us a picture of his finished loop with the very useful rotator (!)
Kind Regards,
SR