I did not do the prior update and have never had any issues. I decided to go ahead and do this one and have not had any problems.
I downloaded on 1x and after had only 3G. I have the LTE on/off app and went in and manually switched it to 4G only, which worked fine, then I switched it back to auto and it has worked without problems since.
I did lose the hotspot though, but don't hardly ever use it so really don't care about that. I'm would think they will kill it for everybody soon anyway.