The biggest advantage of AWS IoT Core, in my experience, is its reliable and highly scalable device messaging platform. It makes it straightforward to securely connect millions of devices over MQTT, HTTP, or WebSockets, while automatically handling authentication, authorization, and message routing.

I especially appreciate the Rules Engine and Device Shadow features. Device Shadow lets applications interact with devices even when they’re temporarily offline, and the Rules Engine can route incoming messages to multiple AWS services without the need to write custom middleware. Review collected by and hosted on G2.com.

Setting up certificates, IoT policies, MQTT topics, and fine-grained permissions can be confusing at first. When connectivity issues come up, troubleshooting often means looking at certificates, topic permissions, and policy evaluation together. That combined view takes some time to learn, so there’s definitely a learning curve in the beginning. Review collected by and hosted on G2.com.