Goro and Gunn is pretty new on the Calgary food scene and inhabits the bottom floor of the now defunct West restaurant and Bar in the Scotia building (just at the top of the escalator on the 2nd floor of the building). I've only ever been here for dinner and thus have not experienced the rushed lunch hour they apparently get there.
The ambiance is awesome, very modern, chic, and open. They have a bunch of family style long tables and seats at the bar/along the kitchen and their booths are comfortable and large, though there are not too many of them. Their cocktail menu is pretty awesome, my friends and I got a couple and they all tasted great. They are all pretty fun and different--and a good cocktail place is something we definitely need in Calgary so that is a plus.
Their spicy lamb ramen is by far my favourite, the broth has the best flavour. You can also add a bunch of extras to it, like egg, pork belly etc, but this one is fine on its own. For the plainer shio ramen I would consider adding the pork belly or something to it to jazz it up a bit. BIG fan of the sushi here, especially the spicy tuna. The lure of the ramen restaurant is to go for the ramen but I think the sushi is enough in its own right. The ramen burgers are delicious, but just mini slider style and only two come in a portion so maybe not a good idea to go with them for your complete meal but great as a novelty item!
Also, price is very reasonable, with around $12 for a giant bowl of ramen, or $12 for a large portion of sushi, you can't go wrong.
Would definitely recommend for the cocktails, sushi, and a change in the Calgary food scene.