Microsoft Azure IoT Central - perfect for beginners, adequate for business

Company's need was for a platform to support application IoT systems and application development. In my personal case, I was newly introduced to all concepts which Azure offered: IoT world, centralized system and platform as a service. Microsoft's documentation on the topic was very good and handy in a lot of situations. For a beginner to set up an IoT system it was easy as a couple of clicks, but after some time I wished that it was a bit deeper because it gets harder to build on more complex solutions as the tutorials really just document the basics and not "what it actually does". IoT services (IoT hub, stream analytics, etc) themselves offer a fine programmatic approach (API) as well as easy to configure GUI on their portal. This was just the basic usage as later on in the company we went much further into building complex solutions using Azure's IoT services. In the beginning, documentation was good and covered a lot of things and the only complaint we had was that not enough problems have been encountered and solved, as for many difficulties it was a process of trying many different approaches until finding a good one.