One can always be a bit on the fence when it comes to finding an "authentic" institution in the land of the reinvention--aka Vegas, but I was pleasantly surprised with Ri Ra.
The decor and atmosphere smacked of fairly traditional Irish pubs--warm woods and inviting paint colors--with the only difference being the sky-high ceiling height.
Food was solid and decently priced. I'll always like a spot that has Smithwicks on tap. Service was great, too.
Would recommend this spot for anyone trolling the Strip.