I had one of those gold euonymus many years ago. It was a pretty yellow shade in the landscape. I kept it short, maybe 18" tall, and it was easy to trim. But after a couple of years it's spread was huge, and impossible to keep hacked back to a reasonable width. I eventually replaced it with something else but only after I battled the beast for years.
I found it pretty and definitely worth having as long as you're willing to work at controlling the spread or replacing with a new plant every few years. That was planted in the ground though, I don't know how it behaves in a pot.
Karen
