I haven't changed anything aside from freezing a bunch of apps with Titanium Backup. I haven't even installed a custom recovery. When **** got so screwed up from the last OTA I started fresh and rooted, intending to install CWM but never got around to it. So I'm rooted and nothing else. I've used Odin before to start fresh and I have no trouble with doing that again except that I hate having to set all of my screens, widgets, and folders up again. The couple times I've used a backup recovery they didn't recover those settings. I have all of my apps sorted into folders and it would be a huge PITA to do that again. I figure there has to be a way to backup and recover the layouts of the home screens. I have MyBackup Pro and can install CMW.
My phone has become very laggy over the past few months, which is why I decided to take the OTA hoping it would clean some things up. Honestly, I lost interest in doing all kinds of customization. I just want the phone to work smoothly again. If stock 4.3 with some crap frozen will do that then that's all I need. Is there a 4.4 version that runs without issues on the GS3?