I agree. The device is now in a good shape
with room for improvement:
- calendar: I do not receive any reminder for any events. And it is a bit a long process to open the calendar for upcoming events. I would prefer that to appear in the notifications...
The UI is also not the best imo

- browser: it is very fast but as described above, the fact that it opens previous page when you open it is not the best idea. I would much prefer a very fast opening with a blank page
In addition, it is sometimes stuck when on cellular (not sure why).
And there are some conditions where the page is not properly loaded (blur effect) and you need to move the page around to get it properly visible...
I would love to have firefox sync in place as well with native browser :P

- emails: there are again a situation where it is difficult to come back to the main page with a gesture, I sometimes need to go all the way up and use the dot to come back...
Another pain is the fact that when a mail is opened, there is no way to move it to a sub-folder, you need to come back to the main page.

- bluetooth: I have some difficulty to have automatic connection of my headset (Philips M1BT), I usually need to do it manually and sometimes it fails the first time
I have the same problem with connecting my Pebble

- music player: the only complain so far is the lack of option to add an entire album to the playlist...

- connection: as other the connection is sometimes stuck and you keep having (error in connection)... But it is usually ok

So all in all, it is a great (and working) device with nice autonomy, a fluid interface, more and more native apps (with lacks filled with Android apps).
I never had any big issue anyway before (only twice a lipstick restart but nothing major)...