While IPVM focuses on security related IoT devices - Nestcam, Lockitron for example - the world of IoT products is really prolific right now and there's a good chance you have seen some good ones.
The best IoT device I have experienced so far is Rachio's IRO. It essentially is a water sprinkler controller that you can access via an app, and the key value prop is that it pulls data from nearby government weather stations, so if it is raining it skips watering and so on:
While the world is full of 'IoT junk' that fails to deliver on performance claims, Rachio is even a rarer breed: it's a great product that began life as a crowdfunded project.
From install to operation, the product really is solid. In my case, the Iro is vastly better than the device it replaced. The company is both smart and serious in terms of design and support, a rare thing in the startup IoT world! As a result, there is quite the number of Rachio fanbois out there.
What about you? What does your non-security 'IoT Wall of Fame' look like? Any products to avoid?