As I'm not a musician I can't comment on some things.
I was looking for a good, soft sounding instrument for relaxation and hobby playing. After experimenting with it and as good as the 432Hz may sound, unfortunately not all tongues or scales sound as good. Practically as a beginner it's difficult to use all of the drum tongues in one playing set however for wider choice it's nice to have 10 different sounding tongues.
Some tongues do sound very nice and I could just use 4 - 6 of them and good playing mood is guaranteed. But all the rest of the tongues are then kind of in a way. I personally don't like to use those tongues which sound, as one other reviewer has said, out of tune.
Overall it's feels like a quality instrument, but probably not for beginners. Now I'm looking at ones which have possibility to tune the sounds. Oh well, life is full of choices :)