I was rooted until the OTA they released for US Cellular about a month ago.
I could not install the OTA because when it reboots, it would boot to Clockwork Mod thus causing the OTA to fail.
Only once I downloaded the update file from Samsung for US Cellular directly could I install the update, which "unrooted" my device. To me this was fine. I only rooted to gain back WiFi tethering access.
Have not bothered rooting again since due to having a few issues with SuperUser access causing problems on my end. I may root it again in the future, but not 100% positive on that.