61-key, fairly soft, no aftertouch.
pitch bend and modulation.
2 USB ports (to PC memory and mass)
Sounds non ditables, just altrables with pots on the front.
Super lightweight, trs fast ignition, the prt play what.

UTILIZATION

Use could not be more simple: the main functions have their own button Accs.
The manual will be useful for functions such as "pushing for more than one second on the button to change the arpeggio type arpge".
Screen much broader and trs readable, with just rglage contrast ct.
ATTENTION SIDE INTERFACE MIDI is the jam that has: no possibility to change the MIDI channel, and only the GM sounds are accessible via MIDI. Therefore not possible to use a good 88-key keyboard ballast to control the excellent piano from the pattern, it does not work. Similarly, the arranger does not follow the give from the MIDI IN.
Pilot with an external keyboard, it behaves as a GM module, with GM sounds .....
Too bad ...
And I do not say thank you Yamaha for putting these restrictions in this machine ....
Beware too, the styles (patterns) are actually 56 basic patterns, others are just variations of these basic patterns (without accompaniment, without bass ...)

6 out of 10 because of these limitations

SOUNDS

The sounds are definitely good, it seems from the MOTIF.
In any case, it sounds, arpond the keyboard (there are some MEGA VOICES best effect).
It should actually play a bit of qualiseur to make it sound like keyboards neighbors, and also use its internal qualiseur.
But After all, they are the why, right?

OVERALL OPINION

I use it for some months.
It's fun to use a keyboard trs, which allows very easy to assemble pieces with arranger Intgr (you can load a style SRP in the location of the user from cl USB).
For the piano sound, the MM8 t would frankly more appropriate since we can not control it with an external keyboard.
A keyboard fun for beginners, or connoisseur of some limitations.
Given the price range, hard to beat.