Nubank, with more than 100 million customers, is valued at over $30 billion and operates in only three Latin American countries, yet generates 80% to 90% growth through word of mouth.
The 'Sean Ellis score' is a key element of how Nubank measures product-market fit and makes decisions about investing in new products.
The score is based on asking customers, 'How disappointed would you be if this product went away?'
The answer options are very disappointed, somewhat disappointed, not disappointed, or I no longer use this product.
Jag Duggal, the chief product officer of Nubank, prioritizes deeply held customer pain points and strives for fundamental differences in products.
Nubank creates clear strategies, centered on specific problems, solutions, customers, and strengths.
Companies should strive to be fundamentally different instead of incrementally better through category design.
To develop solutions that resonate with users start by conducting meticulous customer research.
Your strongest customers are generally your most engaged users, deriving the most value from your product.
Your strategy needs to define 'what was supposed to be happening' rather than being aspirational or vague.