It does what it does, image viewing. And it does really well. It opens most image format you can think of, even some niche ones. But the problem comes when it tried not to be image viewer. It wants to be a file browser too, and that part's experience lacks polish.
The critical downside is it's window's centric UI & UX. Going between OSX and Gnome based Linux, it's design could have gone through some face lift, and that leads to…
- Configuration is cluttered. But I believe a little cleanup could streamline the settings interface.
- Hotkeys by default uses classic windows key combination. Some keys are design to accommodate full size keyboard by default (Example would be Zooming in and out is + and - key from numpad instead - =). Which is inconvenient for Laptop and TKL users. And not all shortcuts are configurable, I have to think like using windows software instead of my Gnome configurations.
- Doesn't support multi viewer windows. Which is a bummer, when I work on design, I would like to view multiple images simultaneously.
- File browser is mandatory and it cannot be disabled. Browser Dark UI are full of bright gradient highlights and still uses bright folder icons etc. Could have spend little more attention on default theme color.
Potentially it could be number one best image viewer on the market, it's just hindered by the unpolished UI. It is stuck in early 2000 windows centric design. I would like to see it integrate better on other OSes, or even modern windows.