The Top Three main Reasons which has convinced me to Upgrade to the SX900

[Telmo]

To me, the new key-bed action feel, the ability to add three voices on the right hand and split the keyboard in three zones, and the enhanced capacity to 1GB for Expansion Packs.
How about you??

[ton37]

Mmm.., only three? OK😉
1. Touchscreen with adjustable brightness
2. Chordlooper and Joystick
3. More memory

All other plusses are bonus😉

[Danny1972]

1. Vocal sounds as per T4 onwards... (finally) which hopefully means full backwards compatibility
2. Improved drums
3. Bigger memory capacity

[metcam]

Bigger memory
Chord looper-Tempo reset
SUB scale tune (still not finished to be 100% functional, missing note shift for each layer))

.........
Keys
Touch screen


Regards

[ppkeyboard]

I hope the sound is also better than my S770 
I'm going to listen as soon they are in store in The Netherlands!

[Dnj]

I hope the sound is also better than my S770 
I'm going to listen as soon they are in store in The Netherlands!

What do you dislike about the S970 sound?

[Enildo]

01, 1gb Extra Memory Capacity
02. Assignable Buttons
03. New Operating System (Genos Based)

[ppkeyboard]

What do you dislike about the S970 sound?

A few years ago I listened to S670 - S770 - S970 and T5. Every instrument sounded better than the previous. I hope the SX900 has even a better sound than the S770.

[Danny1972]

A few years ago I listened to S670 - S770 - S970 and T5. Every instrument sounded better than the previous. I hope the SX900 has even a better sound than the S770.

Not sure that's a true comparison because each of those models you mention are in different range groups so I would expect them to sound better.