I've been using this for a few years now. I deliberately only used it on a kinesis advantage (and typematrix I tried out for a while - lack of ergonomically pl

I've been using this for a few years now. I deliberately only used it on a kinesis advantage (and typematrix I tried out for a while - lack of ergonomically placed modifier keys killed me though...). I deliberately use QWERTY on laptops and so on, so my fingers retain some memory of that and let me switch back and forth easily. It took a while to get fast enough to be productive - it's a pain switching layouts. The nice thing about using a kinesis advantage is that as it re-maps the keys in the keyboard, the computer isn't aware of keyboard mapping at all. When I was trying out things like the typematrix or a MS keyboard that required drivers etc, it was always a pain getting things like BIOS passwords, login screens, etc. to work reliably.