From the design point of view, it is a very nice bass indeed: light, compact, nice-sounding. Thanks to the special polymer strings, its has a sound that resembles that of a jazz double bass.
However, the craftsmanship of the China-made instrument is not exactly perfect. Namely, the fretwork needs to be discussed here. Some frets are bumpy, causing the string to buzz in some areas of the fretboard than in others. Fret ends are not quite perfect either.
In all honesty, a Chinese-made gutar at this price level should be flawless, which is not the case. This said, I still consider it an interesting option for those who value the features mentioned above: compact size, lightweight, nice acoustic sound.
And the piezo pickup works fine. Very nice sound. It's built in tuner is a useful thing too.
Update:
I had a chance to evaluate another piece, which generally confirmed my first impression that minor quality issues are there but should not have been considering the price tag. Anyhow, I don't see any plausible alternative to this little acousitc bass.