I think there are two camps regarding this one.
First Camp are people who love to try out every new feature that is advertised by Apple with new iOS, and expect it to work perfectly. And there is nothing wrong with that. As they say, "It should do exactly what it says on the Tin
."
Second camp are people who love to have the latest gadget and software, irrespective of the fact that they probably don't use most of the feature available on their iPhones. So they wouldn't care if the features advertised don't work perfectly. They are just happy that they OWN the latest thing
If you belong to the first Camp - then the advice is clear - WAIT, DON'T UPGRADE YET
.
If you belong to the second camp, then hallelujah, join the club and start posting on millions of threads, complaining about one of the many features on iOS6 not working properly
..