My kids love getting takeout from J Chen. Service is VERY fast (like 10 minutes to pickup), and the food and service is consistent like mentioned by Ryan C. It's pretty dead as a restaurant goes, but I do see a lot of people coming in for take out.... I'm assuming that is where most of their business comes from.
I think the prices are a bit high for Chinese takeout - usually we get one dish for the kids to split and it runs about $11. A welcome option for Tatum Ranch, which has very slim restaurant pickings!