Nissan Air was recommended to us by the neighbour. Their air conditioner stopped working during the hottest week in May and the same day we realized ours wasn't working either. Mason came out the next day, repaired the neighbour's air conditioner and told us ours could not be fixed. He returned two days later and replaced our air conditioner. We appreciated the efficient workmanship. He spent 5 hours replacing the system and left everything neat and tidy. Mason followed up the next day to ask if it was working to our satisfaction. We recommend Nissan Air.