I was very hesitant at first and like you; I hung back and watched other people's posts of problems. I finally gave in though and updated normally through iTunes and then used Redsnow 14. I have the iPhone 4 Black 32 GB. So far I have not had any problems at all. In fact my signal strength has been much better ever since. I did not preserve baseband or anything like that. I would say go for it if you don't need am unlock right away. Good luck.