Wellbrook RX loop review

See http://medxr.blogspot.com.au/2015/02/review-wellbrook-ala1530s-loop-antenna.html .

Some stations have splashed out on this RX only loop in an attempt to overcome man made noise sources. This is a review of one person's results with this 1m diameter loop. Like many, this Australian was well satisfied.  In Australia it is even more expensive as the shipping costs from the UK are high.

I have wondered about the LF loop as a possible RX only antenna for 136 and 472kHz.  I believe the loop is balanced and being a loop, it has directivity. It has to be positioned some distance for any TX antenna and ideally rotated.