So I'm currently running a rooted note 2 with perseus kernel. I've never run a non stock rom so I'm wondering if I upgrade to it, will I lose all my information, settings, etc? basically is it like starting with a new phone in terms of setup? or is this what is required with a new rom install? what about all the apps i have setup? if for some reason i don't like the rom, what is the easiest way to recover how my phone was assuming i did a backup? i have made a backup of my stock rom along with using titanium backup.
Sounds like you're running a custom ROM, or are you wanting to move from a stock to the Alliance ROM?
In either case you will lose settings, and likely some or all information. Appears that you made a Nandroid backup so can flash back to your current ROM if you don't like Alliance. You could restore your apps and app data via Titanium.
I certainly enjoyed all the options allowed with Alliance Rom, but ultimately I found it hung up often. Touchwiz wouldn't work, the cpu speed would ramp up and not allow anything to work, etc. I'm sure a program I was using probably had a conflic, even as I added one at a time, but the hours of tinkering to figure out what that might be certainly was not worth whatever payoff i might have gotten. reloading the stock rom with the perseus kernel and calling it good