It's a travesty on the whole. Some sort of background operation is chewing through CPU cycles, causing everything from an iPad to an iphone 6 (and Plus) to burn through battery in less than half a day. Sometimes it's drained an iPad Air 2 we have for testing within 3 hours from a full charge with zero on-time. Meaning, the device was in standby for 3 hours from a full charge then basically dead.
Beyond this obvious battery problem is another of great concern regarding iCloud backups. MASSIVE storage loss on our iCloud accounts for test devices. One account has over 500 GB of the entire 1 TB available allocated to "Backups" and yet when you actually look at the list of backups there are only two devices with less than 20 GB in size each. Where is the rest of the storage going? More transparency for iCloud relative to backups should be made available especially when this is crippling development. We can't do anything to delete the data and have no eta on when this will be resolved, or if it will impact any pre-existing data in test.
And please no speeches about this should be expected. We are doing Apple a FAVOR by testing bugs this bad. We should be discovering bugs related to new APIs not doing the experimental evaluation of their completely redesigned code base. This is excessive, especially considering we pay money for our development accounts and now we are being put in a position of having to scrap entire iCloud accounts and generate new ones just to keep doing what little testing we can.
They should also include a rollback feature when ever things are this "fresh". We have 8 test devices here. 4 of which are crippled with this new beta, and not to mention the nearly 2 thousand in recent Apple watches we acquired to test native APIs only to find that Beta 1 of watch OS 2 can barely maintain a consistent connection to some iOS 9 Beta 1 devices for more than a few stand-by cycles.
Bug reports have been filed as I am sure many other developers have done.
To be fair, the beta is rather resilient in many other ways. I've definitely seen worse as far as completely breaking existing code, but that still doesn't excuse breaking core functions like power management and entirely out of control data usage (for who knows what).
Also, wasn't improved performance and battery life an advertised feature of iOS 9? 😉
Anyway, thanks for letting me rant this one out. Pretty confident Apple will release something on Tuesday to address this. (At least I'm keeping my hopes up they will!)