Our content has been very successful because it is created by our own customers (as opposed to paid for). They feel more comfortable creating blogs, writing reviews etc if they know they will not be charged for this activity - so we get really good honest feedback too! There's no real downside at all in using stamped content; we've never had any issues with negative comments or views being filtered out on the basis that they're stamped. I like that it is an easy platform for customers to use, they can create their own content or choose from pre made templates. It does not have as many features as other platforms such as BuzzSumo but what we do need works well enough. We are using Stampd to gather user generated content from our clients which helps us build relationships with them and gain insights into how we can improve products and services.