I thought about getting the N4 but knowing it was LG made me not want to do it. Plus i don't want to go down in screen size.
I recently sold the Note and got the Nexus 4. The screen size of the N4 is not that small, and I find it much easier to hold during phone calls and browsing sessions. Compared my plastic LG dumbphone from a few years ago, this is a completely different beast. The smoothness of project butter, and the stability of the stock JB ROM are astounding. I rebooted N4 a couple of times to unlock bootloader, root, and to apply 4.2.1 update. A week later the phone was still going strong and lag free. If it hadn't been the need to apply the 4.2.2 update, I would still be amazed at the up time. As good as CM 10 on the Note was (and CM 10.1 probably is), there is no way the phone would go on for that long.