We built our first home with Fieldstone and we loved it! We wished that they built in the area that we moved to because we'd love to have another home from them. Everyone (from sales staff to design consultants to the contractors and even the mortgage company) was great to work with! We loved all of the options and the opportunity that we had to really personalize things.
The only thing to beware of is that your actual sales price will probably be higher than the "base price" you are quoted when you first go in because of the upgrades, but that will be true with any new construction home that you build.!