Question about Nabco Entrances

Has anyone worked with or spec’d the Gyro Tech line of entrances before? I was presented with a substitution request to use GT1175 Whisper Sliders and GT600 OHC swing operators. The original spec called for using Stanley DuraGlide and MagicSwing OHC entrances.

I was wondering how the Gyro Tech product from Nabco compare in terms of costs and reliability in heavy duty use environments.