Usability is the benchmark
Keyboards, mice, displays, stands and audio devices are difficult to judge with one number because comfort and control are personal. A useful review therefore explains dimensions, materials, switch or button behavior, adjustment range, software requirements and the situations in which a product works best.
Historical enthusiast sites often treated peripherals as serious hardware rather than accessories. That approach still makes sense. A reliable mouse or comfortable keyboard can improve every task performed on the PC, while poor ergonomics can make even a powerful system unpleasant to use for long sessions.
Look for consistency as well as first impressions. Buttons should feel predictable, surfaces should hold up to repeated use, cables and wireless connections should stay out of the way, and configuration software should add value without becoming a requirement for basic operation.
Match the device to the workload
Gaming peripherals emphasize control and response, while productivity setups may place more weight on comfort, quiet operation and multi-device switching. Neither category is automatically better; the right choice depends on how the system is used most often.
The gaming-reviews section expands on input and display considerations in games, while PC builds covers the broader system that supports those devices.