Outside of wishing for zoomoutable (new word :P) features to be added. It is for the most part more stable than edge chrome or firefox. My issue more often than not is the screen flipping which resolves itself by clicking anywhere on the page.
It would be interesting to see this app ported for Linux... however the flash support is spotty on that side of the river.
To those that are having issues with it being too large; odds are that your on a 1366 or lower native screen. The fix is to regedit the resolution to a higher res (*ex 1600x900/1920x1080 etc) It will cause some blurriness but this will *fix* the issue. *Disclaimer* If you're not familiar with regedit and don't know how to use restore points do not attempt.