worth it, yes: (all IMO)

Cons to Jolla 1
- size, JP-1 is hands down the best device size for sfos, X does not hurt but for some actions i have to "regrip".
- Bluetooth is wonky, some things work some don't. Headsets are no problem for me, Music playback stutters on some speakers.
- wakeup problems, sometimes no touch is recognized and i need to lock and unlock again (maybe only due to unofficial doubletab activation?)...
- Double tap wake up. I went over to always do a triple tap on x because double tap is only ~2/3 of the tries recognized.
- some weird dalvik apps crashing issues (for me)
- onsolved lipstick freeze problem (Red light, freeze) under not reproduce-able conditions.
- The bootscreen is as ugly as i can imagine. 5 wasted seconds of unlock warning followed by 20 secs of GUSHING white with tiny sony logo until sfos pops up. I don't know how often i tantalized my eyes when rebooting at night. Especially nice when the "red light freeze" occours during a night drive.. ZZZZZZZ. How i miss the black bootscreen...

Pros
- significantly faster
- little better multitasking (i expected more from doubled RAM)
- gorgeous screen compared to jp1
- higher res + more brightness make the thin fonts better readable.
- higher brightness range with slider
- Camera better than jp1 but meh in comparison to most other phones out there.
- nicer build quality
- the rounded edges help to fit in pockets and feel better than jp1
- Fingerprint reader takes some time to get used to the (First click than Tab) method but works reliably now that i "am not holding it wrong" anymore Faster than pin for me.
- curved glass feels good for edgeswipes
- louder and nicer sounding speakers.
- wider choice in (quality) accessories
- dalvik with 4.4 compatibility (i've put it last for you)

There may be other tech problems i already got used to or never ran into with my usecase.

EDIT, according to Juicemes post time, it took me longer than 20 minutes to write this post