I have been running my 01515 5-in-1 now for approx 5 - 6 years. I have actually just replaced the outdoor sensor as it stopped sending data. In the next generation of this device it would be great if the indoor part could automatically adjust the date and time off of the computer that it is connected to. What a revelation. All of the issues i have ever run into with My Backyard Weather, Weather Underground have all been due to the time set on the sensor.