Jolla User Experience:

First expressions

Package was nice. Nothing special. Charger feels a bit cheap, and cable too, being used to Nokia's stock accessories.
The device feels solid and sturdy, love the design. The front of the device leaves a very good impression, a sense of high quality is felt immediately. Buttons too feel great & high quality.
The back cover feels a bit cheap & plastic in its own, but when attached to the device, the feeling vanishes. Apparently “the whole is more than the sum of its parts” in this case too.
The clipping mechanism also feels good & sturdy but only time will tell if it will remain so. The device feels a tad too big in hand for one-hand-usage, but maybe that's my personal preference.

The OS and UI: I've now used the device for more than a week, and the general user experience has been fantastic. This is the first touchscreen device I own and have been left wondering how the navigation could be implemented in any other way in a mobile phone; it's so fluid and FAST (especially fast). Peek-gesture is very useful, switching between tasks is seamless and fast. Covers, if done correctly, is very useful. But that's enough complementing, now the constructive criticism.

Starting from the pin screen, why not swipe to accept?

Music player: I have all my music I want to listen in my SD-card, the stock player won't automatically move to the next track when the current one is over. Annoying and I hope this'll get fixed. Also a great number of tracks can't be played. My heeadphones with inbuilt volume controls in cords works fine which was a pleasant surprise though

Ambiance (& camera): I'd like if the camera could be set in a way the WHOLE pictures taken would show in the screen and not just the middle of it. Also the ambiances from my Other Half covers won't install; or they are installed, but only show some weird stripes as a picture. Just tested that the ringtone does change when Poppy Red TOH is installed. It's just the pictures won't show correctly. Also there have been some weird device reboots & retype pin scenarios when the Poppy Red Half is attached.

Mail: I haven't been able to test this yet because I incorrectly entered my mail account settings and haven't found a way to reset & correct them yet. Yes I have tried uninstalling & reinstalling and searched from the application settings.
thanks @att for pointing the right settings!

Web-browser: Not good yet. Typing text in the text boxes is problematic. Navigation is clunky. Tabs re-load when moved to which I find annoying. Suggestion: Why not implement some faster way to move between tabs & type to address bar. Maybe long press anywhere to activate the swipe-to-change-tab-and-type-to-address-bar-mode? I mean we don't need a separate window for that IMO. Maybe only bookmarks need a separate window. And of course: landscape-mode .

Call-UI: Pulley menus are cool: why not use them when the call is on too? I feel with this kind of UI there should be as few buttons as possible. Oh, and the call quality is very good if not excellent.

Clock: I'd like if it could be implemented that when the alarm plays (wake-up alarm for example) the core gestures would be deactived so you could only snooze or close alarm. Hoping this is possible and not too hard to implement .

Battery: When the battery drops below 10% the device starts to lag. A lot. The energy usage I hope could be made better, battery doesn't last long enough.

Maybe I've forgotten something but that's all for now. Sent from my Jolla (used the Jolla's default notes app to type & copypasted).