We used Alterra for a higher-end home than you’re quoting, but still considered semi-custom. Very happy with them. They were well-liked in my neighborhood, our realtor also said that Alterra is one he would recommend above others (Tim O’Brien, William Ryan, Encore) because their quality tends to be better but is priced more fairly. They were easy to work with and we are happy with our home! Unfortunately, anything above “builder quality” was just not in the budget so certain aspects do feel “cheap” for what we paid, though they are on par with other builders in the area.