I tried a few of these so far and apart from the low "D" all are good.
I have used all the silly expensive makes and have been very disappointed by some.
These work great for me. My music is Folk rock & blues, so my harmonica's are working all night, a few nights a week and weak makes soon go down (flat or sharp), reed plates for repairs are expensive and not always matching the other, original plate.
I will stick with this make for a while & see how they go.