Agree with pycage. Except that the browser still lacks bad compared to Opera or Firefox on android. Font sizes are very small, doubletap zoom doesn't work well here at talk.maemo.org, back button remembers zoom and location very seldom.
Luckily libhybris speed is absolutely fantastic today, and you can't tell difference between middle to high end performance android and Jolla.

Longest uptime I've had was between updates 6 and latest 7. 40 days in total. And no signs of slowing down as so often with android handsets.

From N9 I miss calendar events view, the obvious low power screen, better screen size and screen visibility in direct sunlight. And of course the beauty of the device itself. These cannot be helped but pretty much everything else, and more, are covered already.