- Product generates good feelings
- Product sustains good feelings
- Product puts a smile on users face
- Product is fun to use, delightful, exciting
- Product feels good, works well, joy to own
- Interface friction is minimal
[...] we most enjoy life when we’re presented with – or seek out – manageable but creative challenges that tap into our individual curiosities and interests – challenges that give us immediate feedback for our improvement and success – by Mark
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