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You never had a customer rip your head off because they took your estimate as a promise and based their own deadlines on it?

• a_imho 6y ago
  Exactly. So when a customer asks for an estimate you negotiate for the biggest buffer you can get away with, there is no incentive to make an accurate prediction.
  • tempodox 6y ago
    Now I get your point, and agree. Plus, coming out below that estimate will make for a pleasant experience.
    • a_imho 6y ago
      It depends. In most typical cases if it is billed by the hour (inc. regular employment) it does not worth it to deliver early. When failure to meet deadlines is expected the optimal time to deliver is after the original estimate. The exact numbers can vary a lot.