Nitro. Is it a gimmick or not?
Verdict: It's not, it's delicious, and I want to see it used more for the right styles.
Styles I love on Nitro:
British Bitters & ESBs, pretty much any stout but definitely Oatmeal Stouts, Brown Ales, all coffee beers, Porters
Delicious Evidence below.
Brewery: Bent Paddle
Location: Duluth, MN
Beer: Bent Paddle Black
Style: Porter
Serving Style: Draft, Nitro
ABV: 6%
Pairing ideas:
While a porter goes great with a lot of things, especially meats and cheeses, roasts, root veggies, etc, the nitro addition here makes this a great pairing with gooey mild cheeses, a fondue, AND most especially, a hearty flourless chocolate cake.