You've come to the right place for opinions!
Personally, I think there are better choices than the E600, but I'm not much of a Roland fan. If you read back through the posts for the past 30 days, you'll find a lot of discussion on the current crop of arranger keyboards. Good news is they are all really good. Some are stronger in certain areas, some stronger in others.
I think Yamaha probably provides the most features for the money in the lower-priced keyboards. They also have world-wide support and dealer network.