Is This The Best Way to Grow Grass? GROTRAX vs. Hydro Mousse

I try 2 grass growing products to see which is the best.
Let me know what your experience was with either of these products.

[@TylerTryThat]

Which product do ya'll think is better?
Growtrax
tinyurl.com/5n8mze6h
vs
Hydro Mousse
tinyurl.com/3dv8rxtb