I find gateway to be fast, efficient and there customer service is always excellent. I have been dealing with them for the past 10 years and I have never had any issues with them regarding service. There have been some challenges with our heating system over the years because it is a very old unit. The parts are not always standard for repair but they manage to find what we need regardless of the problem. I would highly recommend gateway to anyone that asks and recommend that you try them for service as well.