That it is a one-stop shop. Everything was taken care of and I didn't have to shop around on my own.
Maybe offer a checklist of items to think about before you sit down and sign a contract (i.e. have owners think about their must-haves in advance so they are not constantly asking for change orders to upgrade).
Tilson built us a nice home at a fair price. our builder (bryce rainwater) was fast, throughout, and patient. Our salesperson, J.C. Arocha, was very knowledgeable and professional.
i would request a little more "upfront" information....more detailed explanation without having to ask so many questions.