I suggest trying this alongside the Garganega Pinot Grigio to see if you can taste the step up in quality. I do not want to sound like I am criticising, this is meant to have more to it and the other is meant to be light and refreshing, I just wanted to put an example of a richer Italian white in the case.
Cortese
A white Grape variety reserved for quality wine that typically tastes of lime with generous minerality. Whilst grown in a number of Italian DOCGs, Gavi is where it does best.