In many respects China Tango is your typical neighborhood Chinese-American restaurant: they have take-out/dine in, and the menu is immediately recognizable with all of the staples.
What sets this place apart from everywhere else (especially Panda Express) is the staff , the quality of the food, and the exceptional lunch menu.
Every employee we have encountered is absolutely wonderful and takes great pride in their service, appearance, and attitude. On my last visit we were seated behind a very typical Summerlin family with a teenage twit who felt it was her job to make sure everything was 5 star quality ("What do you mean this chicken isn't free range? Why don't you serve Bling water?") and never once did the waitress lose a beat or let the level of service for the rest of her full section drop.
I'm not sure what it is- perhaps a combination of the smell and ingredients that are higher quality than most neighborhood eateries- but the food here is simply amazing. We've been in about 5 times now and every dish has been delicious and perfectly cooked. My personal favorite is the mu-shu pork and my wife is a huge fan of the volcano shrimp (I have to disagree with other comments about the soup- it's great)
So, long story short- if you live in the area definitely check this place out! I would say it's even worth the drive if you live further out.