We did that a few years ago.  Loved it for about 2 years, and it really pops, so we got lots of compliments.  But then we got tired of it, and it really started to irk us (even though we still got compliments) .  It was a huge pain to paint over.
 
 It looks good, but it's a bold color, so if/when you don't like it, there's no escaping.  So just make sure you're certain.