Don't have any general info for you, but I recently bought the Hohner 32 key student melodica on a whim. I would recommend spending more money. It's okay - and they kids love honking around on it - but for $35, the intonation is pretty bad, especially the lower octave. The thing isn't really in tune, with standard pitch or itself. If you just want something to fool around with, it'll do, but if you want a really useful instrument, I think you'll need to bump the price point up a couple of notches. Hopefully someone else can recommend a little more reliable instrument.....