A great guitar for traveling with the ability to attach a frame creating the "body" of the guitar. Included in the package is the guitar including a two-piece frame, a foldable case, three picks, neck adjustment tool, headphones, case strap, guitar strap, 6.3 mm jack cable, instruction manual (in foreign languages only), USB C-A cable and cleaning cloth.
Getting used to the frame can be quite problematic, especially when switching from acoustic guitars (which is expected here), for people used to electric guitars it shouldn't be such a problem.
Setting possible effects, equalizer, etc. is intuitive, the only complaint I have is the "Air boost" and "Tone boost" buttons, which are small and difficult to operate, and when using the tone boost I often found myself pressing the "Save" button. The sound and volume are sufficient even for large headphones like SONY MDR-1R, while the guitar sounds nice on its own (turned off), at the same time it is necessary to count on the fact that it will be about as noisy for the surroundings as an electric guitar like Les Paul studio when turned off.
The main problem I have is with the factory setting of the product, which I did not expect at the price range. Thus, it is advisable to have the whole guitar tuned. As for the neck (convexity or concavity), there is no problem here, everything can be adjusted easily with the tools provided. The problem I find is that the strings above the 12th fret are about 2.4 mm. Also, probably the most problematic part is that the high E string has a lower volume than the other strings by 30-50% (which is probably caused by a problem with the pickup and the piezo pickup). You need basic tools for these problems or have everything adjusted by professionals.
For the price I would expect more, in case of perfect adjustment of the whole tool from the factory I wouldn't complain at all (maybe just a problem of my piece). However, there isn't much choice of similar tools on the market and despite all the negatives, I think it's a great tool if you're looking for a compact package. Otherwise, I would recommend using el. a guitar with a headphone amplifier, which provide the same service, at the price of a multiply larger package.