Can someone please recommend us a good builder/company from their experience

Hi, We are looking for a good builder to build our brand new house in North Shore Auckland. We have visited many show homes and talked to their salesmen, but we are not fully satisfied with ony of them yet. All the major companies like Signature, Landmark are very expensive. We have now narrowed it down to two companies – Key2 and one of the Chinese builders (they have been building houses from last 10 years and we liked the house they recently built), but we are still not 100% convinced with any of these. We want someone who can finish our house within the set budget and price, and with good qulaity. We don’t want any in-between surprises. Can someone please recommend us a good builder/company from their experience? Many thanks