As we can see, opinions will vary.
Some people love the SA Pianos, which don't appeal to me at all.
I was comparing some sounds on the T4 and I compared both the SA Concert Grand against the archaic basic XG Piano within the XG/GM category and they sounded identical which really surprised (and annoyed) me a little.
Just to make sure that I wasn't going mad, I did the same thing on the S950 comparing the Concert Grand Live! against the XG Piano and the results were the same.
Yep, all the hootin' about the new SA Pianos, and, in my opinion, they are all pretty poor...good bottoms and top ends, but the middles were lifeless.
They fared no better on the Clavinova CVP-509/609 with the "Natural Pianos"...same problems as SA.
Fortunately, Live!Grand Piano comes to the rescue and is an excellent piano voice, and sounds great in all ranges...it's also available on the CVP.
When I want it a bit mellower, I just go to the filter settings and take the Brightness down to -12. Sounds really nice for jazz ballads.
I don't think any arranger is perfect, and I think it's down sometimes to being able to live with the flaws of one particular brand easier than with another.
Having said that, I'm still on the honeymoon stage with my Tyros4...the Tyros5 I played the other night was nice...but so is the Tyros4. I wasn't tempted to upgrade, and, quite frankly, Danny, I don't think I'd find much use for most of the T5's new features, like Organ World and Ensemble to mention only two.
Ian