I've been typing Dvorak on my computer since middle school and so I thought it'd naturally be a good idea to switch my phone... turns out not so much. While having all the common letters on the home row is good for regular typing, it is not good for phone typing which is heavily dependent on autocorrect. If I miss a letter by one key it's still likely for it to be a valid word because common letters are clustered and autocorrect misinterprets. For example, I might type "i" and then "t", "n", and "s" are all adjacent meaning if I meant to type "is" and I miss by one key and type "in" then it is not corrected. Other annoying ones are "by" and "my" because the b and m are next to each other.

Sadly, I'm in a bit too deep to go back to Qwerty on my phone (I'd be very slow for awhile). I do still enjoy Dvorak on the computer and while I don't think I'm a faster typist than I would be with Qwerty, I rarely (pretty much never) experience finger strain when typing for long periods.