Consequently, a third defect is that the neck/fretboard binding is poorly achieved and leaves the neck un-smooth

, the neck is perfect

No it does not have an adjustable neck but what do you expect for this kind of money

Finally, the 1st to 2nd frets on the top (1) E string sound the same "F" note

So the tonal sequence of the top (1) E string is E, F, F, G, G#, etc