I owned this thing for awhile and I must say while it looks good on paper its just not realistic to do anything with any accuracy with it.
1: It is almost impossible to actually play specific notes. You can jump through hoops to go note by note when trying to record but why punish yourself when you can buy and actual synth with keys.
2. The sounds while cool are extremely limited with no ability to create or customize sounds of your own.
3. You cannot easily control this device with and external keyboard because they failed to design the midi portion of it with industry standards. It sends cc messages instead of midi notes which is extremely tedious to go through menus and deal with.
4: There is no undo function, so if you mess up guess what? You get to erase all your hard work and start over.
For maybe 100$ this thing might be worth it just to fool around but like others have already said totally not a musicians music making tool. More like an over priced toy.
I applaud the effort but at this price point it's simply not worth it, and was returned. save you money. IMO any basic synth has infinately more functionality in the real world against this all day.
*** If you are making this purchase do not remove the plastic from the face or take the tape off to look at the manual or you will be losing on your return apparently that is enough to consider this item in used condition.