The 5-octave keyboard is dynamic. but a button to disengage this feature.
The keys itself, without high quality is not bad.
No effects, if not a sustain button.
the headphone output is also used for console or amplifier (too bad), separate outputs have been good.
Operation is super simple, it is typical of portatones (PSR) input range from Yamaha.
The manual is on the net, but do not add much, except for beginners in the use of the chord sequencer.
100 sounds are not editable by voices against the dual function allows the mixing of two voices, and this "stuff" the bank.
50 accompaniments: avoid the trigger!
In terms of sound, this is very basic, the AWM Yamaha widely used in this type of keyboard.
Sounds are difficult to use even been in the state if you want incorporated into compositions with instruments more "pro".
I plugged in a multi-effects rack (behringer virtualizer dsp2024) and some sounds become interesting. the Strings synths with a light phaser and reverb become usable.
several shallow man also with a short delay and slight reverb ... without becoming the focal point of a song.
For cons, the acoustic sounds: nothing serious!
So, overall this keyboard, I got in secondhand for 20 € (the price that the fact that I own). As mentioned above, it's still nice to "or 4 spent in external effects sounds (and still not great quality because the sound will never be great!). I play a little with it, but it will soon be given to my nephews to do it by hand.
Good for children or beginners. MIDI interface for the lack prohibited all farms keypad for my expanders.