Buyers should prioritize the rated operating capacity (ROC) and tipping load to ensure the machine handles intended weights safely. Key components include the hydraulic flow rate (L/min), which determines the efficiency of attachments, and the engine brand (e.g., Kubota, Perkins, or Yanmar) for global parts availability. Additionally, check the articulation angle (typically 40-45 degrees) for maneuverability in tight spaces and the maximum lift height to ensure compatibility with loading trucks or high shelving.