I don't want to cause more issues for either my iPhone or iPad, but I'm sure the final release of iOS 9 will be tolerable. Plus going through the beta the whole summer would take the magic out of when it becomes a final release
It all depends on how the beta runs anyway. If it looks pretty smooth and it fixes a HUGE amount of bugs and especially UI lag, I will be very tempted. I doubt it will start off very sweet though lol.
Do you think they will return the bug reporter app? Since its a public beta people are going to be using the OS as usual where previously developers mainly would be using it to see how their apps run on it. This will result in more thorough usage of all the features, revealing bugs that may have otherwise been left more in the dark only to be found in the final public release. However there's also the fact that people will go "WHATSAPP WONT WORK FACEBOOK WONT WORK THIS RUINNED MY IPHONE" which wouldn't be helpful at all. I just think it could potentially be beneficial for Apple to directly be told about bugs in order to make iOS 9 a better stability update.