Heat Guy J is one of the most excellent series I've had the pleasure of viewing and exceeded my expectations based on the reviews I've seen. It's basically in the detective/action genre that's set in the future, in a unique environment where cities are divided and dependent on a race of people that provide the technology for air and water, and there are also people living outside of this city in the underground and in the forests avoiding the people in the main city. The main character is a detective of sorts who's partner is a robot "J" that assists him in his quests.
The episodes are rarely repetitive and we watch as the main character collects friends throughout the series that offer him assistance in his many endeavors. There is also some nice plot twisting and well integrated CGI that didn't become bothersome. All this is highly impressive, especially for an anime you can find in the bargain bin at your local con. Highly recommended.