[chrupi]

I don't believe it's bad, it actually makes you test your assumptions all the time and eventually make them better. Even successful entrepreneurs has doubts every day. I think as soon as you stop to have doubts you cannot improve anymore.

Recommended read on this topic: http://pandodaily.com/2013/02/05/living-with-doubt/

[zoeymckenzie]

Great read @churpi! I totally agree with you. Having doubts are wonderful. Although its not the best feeling in the world, it really pushes the innovator to analyze their product and find all of its potential weak points/flaws as well as its strengths. The test of a great innovator is to be able to view their product objectively and improve their work. Embrace your doubts - They will make you a better innovator!

[oxplot]

Wow, that post was (not exaggerating) life changing. Thanks.