I tend to listen to yelp in regards to many things in life, restaurants, hotels, even massage places. But recently I listened to my friend who recommended to use Pittsburgh Lx Limo, and even though there was no review on Yelp, I went for it, and it was a right decision. Great service, on time, clean new black car, my wife was very happy. Highly recommend to go with these guys when you are in Pittsburgh. Here their link.