Summarizing Reddit Comments on the "best smart thermostat":

Nest:

• Pros:
  • Sleek design.
  • Easy to use.
  • Works well without issues.
• Cons:
  • Missing features like setting the thermostat to "hold" at a specific temperature.
  • Known to fry circuit boards.

Ecobee:

• Pros:
  • Reliable and works well with a common wire.
  • Interactive touchscreen display.
  • Can control hot water, heat, and air conditioners.
• Cons:
  • Some users find it difficult to use for simple temperature settings.

Honeywell T9:

• Pros:
  • Intuitive interface with touchscreen.
  • Remote temperature sensors for monitoring different room temperatures.

Sensi:

• Pros:
  • Problem-free operation.
  • Doesn't lock you into a specific UI/app.

Klima:

• Pros:
  • Operates through Alexa and user-friendly app.
  • Energy-efficient features to reduce consumption.

Z-Wave Thermostat:

• Programmable with Z-Wave technology and compatible with smart home systems.

General Comments:

• Smart thermostats may have issues if customers don't understand all features like geofencing.
• Price and reliability vary - cheaper options exist.
• Privacy concerns exist due to reliance on external servers for WiFi functionality.
• Some users prefer traditional thermostats without WiFi and microprocessors.
• Consideration for region-specific functions in smart thermostats.
• Benefits of smart thermostats include remote monitoring and control, energy savings, and integrations with other home devices.
• Users have varied experiences with different brands based on reliability and features.

Remember to consider your specific needs and preferences when choosing the best smart thermostat for your home.