Just had Pearl Wok delivered and I can't say it was as good as some of the others say it is.  I'm somewhat disappointed by Chinese food here in Vegas, and Pearl Wok is more of the same... average Chinese food.  I had the kung pao chicken and thought it was pretty bad, but the hot and sour soup was good.  I will say that the ordering process was very smooth -- they didn't mess up my order -- and the delivery was very expedient.