I actually don't think something like perfection exists. That is I think why we are born able to absorb things... and by comparing ourselves with something else we can finally head in a good direction.
Whether it's disappointing or not depends on the person. Things like uneasiness or indecision are in everyone's lives. What's important is to appreciate and grow from every kind of result. If you can grow from them, you can understand that all events are for the purpose of growing and you can appreciate them.