I like that we get different recommendations for our customers based on what products they're currently viewing or searching for. It's also easy to build out tests in a way that they have the best experience possible. We recently started working with Twik for tracking performance of new items in our catalog. The team has been able to provide great insights into how our customers are performing. They've been responsive and helpful when it comes time to tweak things to make sure they're getting the most from their performance. Nothing yet! We've only used Twik for internal marketing channels but so far everyone is very happy with the results.