I've always been intrigued by optimizing the keyboard for writing, and this analyser is a really cool idea. What has always stopped me from using one of these

I've always been intrigued by optimizing the keyboard for writing, and this analyser is a really cool idea. What has always stopped me from using one of these is that I am working at lots of different boxes at work, and there is no way I could get a new layout installed at them all, which I guess would make the switching back and forth very awkward. So... What is your experience? A hassle well worth it?