Tying of tubes

Me and my husband have always said that 2 kids was our limit and after having this baby, i will have 1boy and 1girl. So i am completely done with having kids. I already signed my papers to get my tubes tied 30days ago and i have up until the day i give birth to change my mind. I just want to know the pros and cons of getting tubes tied... If it has been good for you or bad, i want your advice...