Just got back from a boutique:
The Trieste has a very smoky, almost charred sort of flavor to it. Overwhelms the coffee intensity a bit I think. Picked up a sleeve to experiment with.
The Napoli has a very deep, robust flavor. Like a Ristretto crossed with an Indria. I liked it quite a bit. Picked up 3 sleeves.
I was told supply on these is limited, in the same way that the supply on the flavors was limited, so best get them now.