Install it and find out.
I recommend Apex Launcher or Nova Launcher though.
Sorry, very basic question but I'm new to android.
If I install a different launcher and don't like it, is it easy to revert back? Is it simply a case of uninstalling like any other app, or do you have to somehow reinstall the stock one again?
Yup, the stock will still be installed, it's just like apps. Easy as that.