I wanted to try using Zergrush Exploit after applying this update. It doesn't work, you must use OTA root-keeper or you will NOT have root after the upgrade.
I concur with these findings, I installed the update while still rooted and it went thru with no issues other than it wasn't rooted after and the zerg root would not work.
Before I flashed back to stock using RSD I noticed some positive benefits, I'm in a strong 4G lte area and up/dwn load speeds increased not by much but enough to notice, interesting new emergency warning had a setting for presidential warnings and being exempt. Some of the bloat previously installed is no longer like Kindle and a couple other things, didn't write them down. I'm back on the 748 and am going to get OTA root keeper so I can hopefully get root back and then reapply the new update, oh and I have Go Weather and before when I had it on the window with the video background and clicked back to desktop it sorta flickered back but with the update it did not blink transition it just snapped back instantly as if all lag were gone, I also tested a couple games and they were smooth, netflix worked great, all in all I saw improvement even tho it was just a short time. All apps and settings remained intact thru out the entire process from update to flash back to stock and then to the OTA which went right thru. No information or settings were changed at all, I'm stoked!!!!
Ok well seems I was wrong about the Kindle thing as it's still there, the only way you can keep root is to get that OTA Rootkeeper from the market. Anyway I'm running the .173 and rooted.
The camera settings are now colorized and the panorama mode produces a much better pic.