[600MRG] Views on Heros Longwave Converter?

[3up3down]

Anyone have an opinion about the Heros Technology VLF-LF receiving converter
from England? It seems to be a more sophisticated (and costly) design than
other converters on the market. Filtering should be much better than my
Palomar  which works pretty well. I find no reviews of the Heros unit on the
web.

http://herostechnology.co.uk/pdf/VLF_LF_Converter_brochure_web.pdf

Thanks! 

Jeff K0OD
K0OD at arrl.net