There are only a few uses for typing in text anyway, aside from your name: in-game chat, sign-text, portal-tags, and map-markers (optional text).

I play with controller. Funny thing is that now that I'm playing with no map and no portals, the only text entry left is the rare sign I might make (well, and name at character creation time). Even so, when I am using a map I don't add text anyway to keep the map clear -- there are enough icon varieties for my needs.

I really prefer the controller when it comes to movement during combat; also the view direction is separate from character facing which is handy (eg. looking around while mining).