Unfortunately the Starter Kit, Hub, and each Thing (sensors and plug…) have their own set of Reviews, so it is hard to get a consolidated impression, good or bad.
Amazon has a larger collection of reviews which are run through their weighting algorithm, and SmartThings’s has staff actively responding to negative ones.
Seriously, though, the product needs several professional in-depth critiques. We have an organization called “Consumer Reports” that is funded mostly by its readers; they don’t sell advertising. Their reviews are excellent in some categories, a little weak in others, depending on how technical the product is. Yet they would be taking a “consumer” perspective – or at least their journalistic professional advocacy for consumers.
Smart Home is still too difficult to define and decide on comparable products and features, though; which the Community knows really influences the decision process.