I like that they are very thorough in their work. They take the time to understand your needs and make recommendations tailored to you. They do not rush through the process and give you ample opportunity to ask questions and voice concerns. They also provide great follow-up after the project is completed. Nothing really. Their price point was fair for what we needed. We had an existing boiler system that did not have enough capacity to heat our building. The goal of this project was to add additional boilers to meet our heating demands and to upgrade the existing systems with more efficient equipment.