Feedback processes & opinions

In these days I'm thinking in how to give, receive feedback.
For me this is crucial for the growth of the people.
So I will put some questions here and I'll be super glad to receive anything that are not pointed here.

• Did you received feedback from your workmates? How it was?
• Did you received feedback from your managers? How it was?
• How was your feelings before and after this feedback processes?
• Your company have a clear process for this?
• Evaluate from 0 to 10 the value of that.

Don't forget what I said! If you have resources and books or something that helped you in this processes just share it!