Larson Air came in and replaced the circuit board on our furnace. The guy got here on time, which is always nice, and he was dressed appropriately and clean, was cognizant enough to wear safety gear and not get anything dirty. He diagnosed the furnace which took a while and he gave us different options to choose. It took him an hour to get the part and once he did, it only took 15 to 20 minutes so he was very fast. I've dealt with other HVACs and they're not always the best but he came off as a nice guy.