Separating the console and clean script allows the user to have a working script with which the problem solve and perfect, as well as a clean, final script. RStudio brings packages to your fingertips and makes installing them a breeze. The ability to also view one's dataset while working is also invaluable to the user. Generally, the RStudio interface is the same, easy to use interface as R so if you're familiar with one, it should be easy to learn the other.
In order to save packages to your user library, you must download and save them. It would be nice if the system library included more widely used pre-downloaded packages.
RStudio is a great resource as it is open source software and constantly improving and evolving. As a free software, it can be essential for any business which analyzes data, spatial or not.
I work in geospatial analysis. R is a great tool because you can use it for geospatial statistics. RStudio simply makes working in R ten times easier by creating a clean script as well as a separate working space. RStudio also allows me to save and install packages with a click instead of having to download them each time I use the program.