It is a bit too hard to install Omnirom and it can be horribly tedious to go from Omnirom back to stock or to another ROM. It's OK after you have done it a few times, but it is a huge obstacle for anyone trying to discover the way via inaccurate, misleading and fragmented documentation. The install guide at omnirom.org is actually utterly useless for this particular device, a complete non-starter. XpLoDWilD your GT-N7000 specific thread at http://forum.xda-developers.com/show....php?t=2516933 almost guarantees a boot loop because it only mentions but doesn't identify or link to versions of CWM which are adequate. In fact unless the user by diligent searching (or more likely by blind chance) comes across a link to the specific suitable raw kernel then it is one big dead end. You could spend hours and days searching for a suitable CWM and never find it because actually you should be searching for raw_kernel_r#_j##.zip. But how is anyone meant to know this. It turns what is actually a reliable and rather trouble free 15 or 20 minute process into a some kind of waking torment. In the past the documentation on installing via CWM was so bad that I used ODIN, which is less than ideal IMO because it means that anyone switching from stock to Omni doesn't get the chance to make a full nandroid backup of the original system (so to revert means a very tedious clean install).
So assuming the end user somehow finds the right raw kernel whose recovery can install Omnirom, what should they do? Of course they should back up their current apps and also make a nandroid backup. Apps backup is easy with oandbackup or titanium or similar. How about a nandroid backup to external SD? No problem in CWM but once you have TWRP installed you can't use it to access anything on an exfat formatted external SD card! You can back up before installing Omnirom but afterwards you can't restore! This is 100% nuts. exfat has now been around for 8 years. CWM supports it brilliantly. Even my crusty old Debian stable desktop reads and writes to exfat at very high speeds even via a FUSE FS and my puny Asus EeePC netbook running XP Home handles it fine. TWRP? Nope. exfat? Wha tha? Aaaaaagh.
Sorry to rant But for these specific devices Omnirom (with an exfat SD) is really the only high quality competitor to the stock Samsung, and there surely isn't a good reason for it being so frustrating to install and also to revert? Is TWRP really such a killer facility that it is worth foregoing the ability to backup and restore to the now very common exfat microSDHC? I run plain CM 11 on another device and OTA updates work fine on that. In these days of phatter pipes is it really worth making a huge compromise in functionality simply to avoid 200MB of downloads sometimes? On this device the delta updates are going to fail for many anyway unless they use an exfat card, but if they use an exfat card they.....oooouuuurrrggg...vicious circle.
Loving Omnirom btw and writing as a fan.