In product-led growth, user experience (UX) is king. And yet, many product managers struggle to measure and improve it. — Here comes Google’s HEART framework 👇 It measures five elements: 1. Happiness Happiness is defined as the user’s attitude or satisfaction. This is a highly subjective metric. We can collect the data, e.g., with surveys. 💡 Be aware that changes may negatively impact Happiness but do not necessarily have long-term implications.