I am thinking about purchasing a used (3 years old) Roland KR-575 for $1000. Is this a good price? Does anyone have experience with this partcular model or a similar one?

I am an absolute beginner, so I'm not a good judge of key action or realistic sound. I have also been considering renting an acoustic, but I think purchasing a used or inexpensive new digital might be a better route for me until I get the hang of this and have a better idea of what I want from an acoustic so I can purchase one when I'm ready to upgrade.