One of the reason's we're able to build such great products is that we're building for ourselves first. We saw a need in the space for a user-friendly hardware wallet and attacked that first, and will keep building until we're satisfied (hint: we're never 100% satisfied ;)).

As for happiness metrics, we did a customer survey before we launched Batch 2 to get a feeling for all things Passport, and that helped us shape the decisions we made with Batch 2. We pride ourselves on being extremely active in the broader Bitcoin community and stay closely connected to what the space needs to better empower sovereign individuals.