I got my kid one for his pi, he liked it. Served him well. But they often seem to have issues with missing symbols needed for basic programming and dysfunctional keys. Also weird key layouts etc.

Anyway they're fingers can handle normal keyboards super quickly, we could have given him a standard keyboard when he was 2 if there had been a reason.

I didn't know there was such a thing. :)

Might need to get him one for christmas.