Good quality melodica, my only complaint is some of the attachments get

Good quality

The quality is pretty good, and the keys feel nice to play but keep in mind that this is not the quality of a professional instrument and it won't last forever if you use it in a touring situation or throw it around a lot

In general, the sound quality is quite good in its price range, The volume for the lower keys seem to drop off a bit and the high keys do not produce very rich tones as compared to mine

The intonation is not "orchestral quality" - my instrument is, overall, a tiny bit sharp when tested with a tuner; some of the notes are off, relative to one another, by a cent or two