Often we encounter things in our daily lives that we feel we just have to share with our friends, and often we could really use a friend’s knowledge of a product, service, or place we are considering. It could be a “Wow! You have to get one of these...” or a “It was a terrible experience, don’t do it!”
Your friends don’t need a long formal review, in fact most people only want a couple of sentences. Think of it as a Twitter or Instagram message, but focused on you and your friends’ personal subjective reviews only, after all, your friends’ reviews will be more relevant to your likes and more interesting to read than the views of some random person on the internet.