Length of time isn't necessarily a good indicator. Google Reader ran for 7 years when they decided to shut it down.[1] [1] https://en.wikipedia.org/wiki/Google

Length of time isn't necessarily a good indicator. Google Reader ran for 7 years when they decided to shut it down.[1] [1] https://en.wikipedia.org/wiki/Google_Reader#Discontinuation https://en.wikipedia.org/wiki/Google_Reader#Discontinuation