The PI Web API is a great Developer Technology but there are others. Could be that PI Web API is a good fit for some development projects but likely not the one-fits-all solution.
Before starting, or even better, when planning for a new development project, we should have an idea about what technology and what tools we want to use. A good project specification should allow us to asses what requirements must be met and which would be the nice-to-have features. We can use this information, look at available technologies, ideally rate point by point and in the end easily decide for the right technology but this also requires to know what the strengths and weaknesses are with a technology.
Let's start the discussion. Because I've started it, I am allowing myself to go with the most easy pick.
One of the strengths of PI Web API is its platform independence. Http(s) communication is supported by all modern operating systems.
Who picks the next low hanging fruit?