For me is very comfortable, but I never play in HD (where indeed it looks small), as it changes the proportions and distance between clicks therefore my game play is much slower. For vanilla resolution is exactly what I needed since long time.

Of course Baratorch sizes and interface redesign for HD allows bigger arrows but he did not want to adapt it for era, then most people are already complaining about clumsy ctrl+click scripts they are forced to memorize for a lot of actions. Also not everyone plays with a keyboard near.