Design for the minimum viable delightful experience

Which begins by addressing the single most important problem your customer faces. The fewest prioritized pain points, perhaps one.

Once you design a solution for the biggest, most immediate, detrimental element, build upon that. Address other pain points to improve your solution. 

This can go on forever. It's easy to chase perfection, but the idea is to make something worth everyone's time through falling in love with your customer's problems.

Mediocrity falls short, but done is better than perfect.