That's a fantastic question! As a maintenance technician myself, I'd say the perfect guide would focus on what really matters on the shop floor. Instead of those complex torque-speed curves that engineers love, I'd prioritize these three practical metrics:

1. Mean Time Between Failures (MTBF) and Serviceability

How long does this motor typically run before needing service? More importantly, how easy is it to repair when it does fail? I'd want clear info on common failure points, typical repair times, and whether I need special tools or training. Can I replace brushes or bearings easily? Are replacement parts readily available and affordable?

2. Environmental Tolerance and Real-World Durability

Will this motor survive in my actual working conditions? I need to know about dust/water resistance (IP ratings), temperature range it can handle, vibration tolerance, and how it performs with dirty power or voltage fluctuations. Does it need special cooling? How does it handle frequent start-stop cycles or overload conditions without burning out?

3. Diagnostic Accessibility and Troubleshooting Simplicity

What built-in diagnostics does it have? Can I easily check temperature, vibration, or load conditions? Are there clear error codes with practical troubleshooting guides? How easy is it to connect monitoring equipment? Does it have predictive maintenance features that warn me before complete failure?

These metrics would give me what I really need: confidence that the motor will run reliably, knowledge of how to keep it running, and tools to fix it quickly when problems arise. That's way more valuable than theoretical performance curves!