As mentioned by others there are a couple of alignment issues related to ultra widescreen (3440x1440) other than that it seems to play rather nicely at this resolution and aspect.

I posted a couple of issues (with screenshots) to this album http://imgur.com/a/i8sIO

1) tutorial panels are positioned incorrectly for targets that are off-centre.
2) chat icon in lower left has alignment issues when chat is hidden, and when dialog is being displayed.

One other request would be for a volume adjustment slider for the interface widgets. Some widgets (patricularly in the settings) have rollover noises that are rather annoying and can only be adjusted by lowering the master volume. would be nice to have better control over these so they are not as invasive to the game experience.