The form and function are what is important... if the piano sound disappoints, it is a simple job to add a dedicated piano module, or a Sonic Cell with Roland's amazing grands...
By the way, I haven't heard much from users lately on the T2, but I am curious how the SA sax fares at the hands of players that can't take their left hand off the chords, to play sax bends authentically...
As far as I am concerned, if you can't ride the bend lever on a sax sound, no matter HOW good it is, it comes out sounding unrealistic.
There are many sounds that just don't cut it as solo sounds, unless you can free up your left hand. Dashing back to play the chords leaves you little opportunity to milk some of the best bend tricks, so in the end, as said earlier, 'keyboard sounds for keyboard players'...
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An arranger is just a tool. What matters is what you build with it..!