I have downloaded and uninstalled this a couple of times and I can't get LTE to work. When I uninstall it, it'll show I am on LTE but when I download the it my phone only connects with 4G and won't connect with LTE. I have checked all the settings and not sure what's going on. This happening to anyone else? I really want to it work cause it does feel the phone is a little bit snapper, at least the finger unlock is.
Your phone is connecting to LTE, it's simply not showing it. To be sure just go to Settings-About Device-Status-SIM Card Status, in there you'll see the Signal Strength and Mobile Network Type, and you can check that is LTE.
It's not a phone signal issue, it's simply that where the developers live, there's no such thing as LTE, in most of the world what we known for LTE is simply 4G, and that's what you are seeing, the same happens when you buy an International model with a Firmware for that region. It was requested already to them to take that in consideration, it seems that it wasn't done on this release, maybe in a future one.
So, if the only thing that is bothering you is that, just install it and enjoy it as you are not really missing anything by doing that.