Good: When your name is in the title of the business...you better have it all together..and the affable owner, MARK of MARKS MUFFLER SHOP has it all together. I went to his lower 9th. ward shop...around 8:30am, was seen right away...he diagnosed the problem, gave me two options to fix the problem...He and his crew of two pros had me in and out of the shop within the hour. The service, and price made the trip to the ever upcoming neighborhood well worth it. This business is a shinning light in the lower nine.. Bad: No cons as far as I'm concerned.. Improvements: None as far as I'm concerned.. Other: Got a problem with your muffler? This is the shop to bring your problem to..