I'm with Danielle K., L'Gros Luxe should stick with what they do well: cheap and delicious food!
I went here with some friends on a warm summer evening. I was dreaming of air conditioning and delicious drinks, and was a little disappointed to learn they were byob. No matter, the menu looked interesting and byob can be fun, so we were game to try it. And instead of a it being a "luxe" experience, I found it was pricey for not terribly filling food. I ordered some tacos and a friend ordered a salad, and as soon as we were done we quickly ordered a plate of calamari to split because there was no way our dishes were going to satisfy us. Another friend ordered the tartare, and that seemed more substantial, but it shouldn't be so hit or miss.
Maybe it was growing pains (I don't think this location had been open long when we went), but our server wasn't terribly professional or efficient. The service just seemed way too rough around the edges for a restaurant trying to be more upscale.
I may be back, because everyone deserves a second chance, but I will know to make my menu choices wisely.