Well I'm back to stock as well now. I found Omega to suffer from bootloops every couple of times I restarted. I'll probably just be patient and wait for a more stable version. I was on Omega v1.0, and it's already up to v3.0 in 2 weeks! So I'll probably wait a month and try Omega again at version 10
Honestly though, whilst the custom roms offered a lot of changes, speed, battery saving and customisation to my SGS2, the GS4 has most of that already in stock, so there isn't much to gain in using a custom rom; and I'll need some convincing to change my mind. Root apps such as Titanium, Voltage Control and Root Explorer are really all I need; and you don't need a rom for those!