No I haven't.

Buster B. Jones talks about that on his video though and said that even though he used false nails, he didn't recomend them because the glue damaged your real nail or something like that.

I use my natural nail on classical guitar and try to use only my tip on a steal string.

As for me, long fingernails aren't considered masculin, much less pink false nails. So they're out! Buy hey, they work for some.