David Kimura PRO said almost 5 years ago on Creating Health Checks :
It is true that several gems exist for handling this. however, from my experience, unless a gem provides functionality beyond my desire to create said functionality, it is better to either create and maintain your own gem or have it baked into your application. I say this because I have seen so many cases where gems are not kept up to date or have complications with Rails updates. I think that some gems are fine to add, but I do take careful consideration before adding them in.