Bought the P155 without even listened to it in advance.. big misstake.
I have recently sold my P85 to upgrade, and my first tought was the new P155.
I was under the influence that it should sound like the P85 but with much better quality, i was completely misstaken

.
The sound of the new P155 was not the same as the P85(probably because the new CFIII grand sampling,, doh!).
The sound was expressive and detailed, but it just didn't like it

So, what did i disslike about the P155
Playing lower keys i wasn't that much power, it almost felt liked the mid/upper keys was much louder than when playing the lower keys.
It were some "ringing" noise after the tone that i didnt liked, nor could find how to get rid off it disabling reverb/keyoff etc.
I was using my headset Sennheiser HD-595 both for my P85 and the P155, and the difference in sound was quite stunning.
What did i do.. i returned it and told myself to never buy i piano without trying it out before a buy.
I'm currently looking for an alternative, and it's seem that i will be heading for the CP33 which i found the sound to my likings/playing style.
So, do remeber to always play the piano before buying one!

We all have personal taste when it comes to what sound you like, and not to be forgotten, the type of music you play or want to play.
Even thou the P155 was impressive on the paper, i didn't like it.
Another thing to mention that the action is quite hard( i liked it) compared to my old P85.
So that is just another reason to try one out before buying.
Hope you will find a DP that you like!
// Philip