The first time we visited we asked the waitress about gluten free options and the owner came out and talked to us extensively about what we needed. What he brought out was perfect and then he brought out another dish (a different creation) just for us to try. He did not charge us for it, although it has paid off in spades for him as we've been there almost weekly since our first visit. Hands down the best Asian cooking in Springfield. My wife used to get moo goo gai pan from another place on Sunshine (for years, probably 20+) and she now refers to the moo goo from that place as the amateur version. Amazin has the best hot sour soup I've ever had. Always delicious, the staff is always super friendly. I can't speak to delivery because we always dine in but it is excellent every single time.