There is no euphoric effect or any other effect that makes it recreational. It's more of a self-reflection tool that helps to breakthrough into the perception of things that are so much different. And it helps to break bad habits actually: alcohol, tobacco, being aggressive, etc. Also, because it's not euphoric, it is not addictive as other drugs (read: alcohol and above).
It's definitely a tool to break bad habits, but the psychedelic effect can also be recreational, especially before breakthrough doses - not that I use it myself, but I know of some people who do ; )