I've eaten at Lulu's Noodles two times now, and have mixed feelings about the food. The restaurant itself has a very casual and atmosphere, during lunch you order at the counter, as most of its patrons are Pitt/Carnegie Mellon students. The restaurant is clean and spacious, and the service is wonderful.
As it is a pan-Asian restaurant, don't expect its food to very authentic to any particular region... I was very surprised as what was passed off as "pho" the first time I ate there. It was certainly not anything like what you would get at an actual Vietnamese restaurant- the broth was bland and I think they used the wrong kind of noodles, and it didn't come with lime/lemon. I should have known better.
I did however LOVE their pad thai- which was also not very authentic- no tamarind paste etc. It was good though because I was craving a carb fest. So all in all, I'd give it three stars, they have their own interpretations of classic Asian dishes, and whether their interpretations of them are good or not is a crap shoot.