Most important thing to me is how the keys feel to the fingers. You have to play on both of them to see which one works the best for you.
And afcourse the sound matters. But the sound is really a matter of taste. So again you have to play on both of then, and chose the best.
When i bought my DP, i went to several music stores and tried many pianos myself.
Chosing a piano by looking at the written information is not a good idea.
PS: Roland FP7 is a really great piano for 1500 euro. I loved that one, but i had only 1000 euro, so i took Roland FP4.
If you want, go find it in the store and try it, the sound of Roland FP7 is AMAZING!!