I'd say there were absolutely no glitches with Heritage Solar, Inc! The work was performed as promised. The guy I had originally dealt with was great. He had gone on vacation at the time of installation so I had someone else to supervise. The transition might not have been has seamless as it could have been, but I'm not willing to blame on that in particular. Overall, I had a very good experience with Heritage Solar, Inc! I had gotten two quotes from other solar companies. There was not even a price comparison, and they were all pretty equal. We met with a very large company, which had paperwork to go through, and we were afraid the small company wasn't going to be in business for a long time. Heritage Solar, Inc. was in between. Heritage Solar, Inc. was business-like, professional, and answered all our questions!