Very durable and dependable. I highly recommend MGI offer a Sand Bottle Loop attachment like I enjoyed on my MGI Quad Navigator. Every golf course has sand bottles located throughout the course and it's easy to simply replace an empty bottle with a full one. I also highly recommend MGI offer a Net Basket, which fits the trolley. This is convenient for holding head covers, snacks, found balls and trash. I attached my old sand bottle loop and a new Sun Mountain Ridgeline net basket to my new MGI Zip Navigator AT as seen in the attached photograph.