I had one for some years, but I couldn't deal with the maintenance. At one point it began to double type, and then I had to take it apart, clean it a bit, put i

I had one for some years, but I couldn't deal with the maintenance. At one point it began to double type, and then I had to take it apart, clean it a bit, put it together and hope that the issue went away - which it sometimes did, sometimes needed another round of cleaning. So I sold it and now I'm back to a solid rubber domed office keyboard which "just works".