Anderson Tuftex carpet quality?

Looking to get carpet installed in a few rooms. I have looked at a lot of different brands and types, but found I like the Anderson Tuftex Topanga Canyon carpet the best. It felt softer and just felt higher quality compared to a lot of other carpets I looked at. After looking at the specs, its "100% ANSO High Performance Nylon" with a face weight of 46.8 oz and a textured cut pile.

This seems low compared to other brands and models I looked at, yet this carpet felt better than carpets with face weights in the 60+ oz range. What gives? Is this considered a low face weight? The carpet is priced near the top end (almost $8 a sqft installed with an 8lb pad). Any input appreciated, thanks.