Yes, it's part of the Lettuce Entertain You empire.
Yes, it's sort of a mini-chain, with outposts in DC and Chicago.
But yes, I loved it here, very much.
It's cheaper than Bouchon down the street but seems no less authentic; if you can sit outside, great, but inside the mirrored walls and tiled floors are pure bistro.
It's great for a date, a small group, or a girls lunch/dinner out...
I would go back again, if only to sip a glass of rose and have a nice salad without breaking the bank.
Pictures and more detail here: http://www.eattalk.net/2013/02/postcard-from-las-vegas.html#.USfVZOgRQtU