I have tried a tkl, and to be honest the 7cm odd you save isn't really that big of a deal...
i can tell you musn't type very much.... It's not a big deal if you're only typing in short bursts,, but when you gotta churn out long posts on several forums all over the interwebz,,,, one really does need to center their keyboard,, Otherwise one's right arm will be overstreched leftwards
But yea,, it's not undoable,, but tkl is mo4r comfortable for sure.