What they said :

Insonorisation GLH Inc. has developed three innovative building products…(which) exceed current performance standards and may well establish new norms for acoustic separation.
CMHC, Housing awards 1990

Innovative products that resolve many insonorisation problems often met in housing.
Devis Construction Canada

This product is innovative and responds to a crying need compared to actual products available on the market
innovation contest, Building products APCHQ

All of these magazines have praised the solutions put forth by Insonorisation GLH Inc.