I had the opportunity to play on a PSR E313 long enough to make me a clear idea. It is an entry-level arranger 61 key, 482 games, 106 styles, some effects (reverb, chorus, flanger, tremolo, echo, trills).
Warning! very limited connectivity: no usb, no output jack outside the headphone: Midi taken just two and room for a sustain pedal. A sequencer reduced to two tracks. You need a multitrack recorder for external work wonders on this instrument.
A total of 482 X. glite: his ancestor, the PSR 310 has only one hundred. They are GM and XG compatible. They are successful, some astonishing for an instrument so cheap. Failed to complete on lead guitar and all bowed string (strings). The harmonica sounds like an accordion and the accordion as a harmonica. But even electric pianos are not bad. The organs are very interesting, "vintage" as the liturgical diverse and realistic (it gets amazing blend mode "dual"). Acoustic guitars are honorable: the chorus or flanger, we can do a good job with them. The twelve string guitar does not sound like a harpsichord. Like the trumpet (072), trombone, French horn (such as English for that matter), tenor sax and very realistic.
Batteries defend themselves even if I find the crash very artificial. The three kits are really funny sound effects and sources of inspiration: there's one devoted to animals, ion is only found on the E313.
Low: looking good, we finally found the right one. The next "dance" is sufficiently developed on this instrument without fading or Roland Korg provided.
Grip ultra-easy (or not need the manual so little ...) Everything goes through the button "function" that controls volume, effects, styles, transposition, tuning etc.. Ironically this is what makes this instrument impractical on stage: Can not keep a record close to the job after another. And no button to record a program ... It is reserved for the high end.
The manual does not solve all mysteries, but the interface is very intuitive that it happens.
For 200 Euro, the sounds are good, provided to give a good lead guitar (except when using an external distortion) and strings of the orchestra (there is no solution). With a multitrack recorder, I could get on this instrument models convincing even if they are limited. There is indeed no pitch bend or modulation wheel: the sound is not controllable in real time, except to consider the functions "split" and "dual" for adding a combination of additional sound . That means you will find these limits also in the home studio, even if the ISP is equipped with MIDI ... both times 2.5 W speakers are ridiculous for the stage. As for changing the program being on stage with that song, there is frankly adventure!
Today, I would put 150 more Euros to get a more powerful E413 (real-time control, pitch bend ...) but really for 200 Euros, the E313 defended well. Korg example does nothing at this price point.