I own about 16 harmonicas, both major and minor.
I bought 3 harmonicas in different keys to replace some expensive ones i have and are out of tune. One of them was out of tune since i bought it.
So i thought i give it a try and i am very glad did.
I played the same song with my expensive one and the new one and i could not hear the difference.
I have to say that i play soft solos while playing guitar with my harmonicas, i don't play blues where you blow very hard so i don't know how they will react in this case.
For my needs this harmonicas are great