Using the FP2 as a daily driver for about 1 week now.
All i can say is: WOW!
When you compare it with Jolla 1 it is like you replace a bike with a car :-)

I connected all the Jolla C Repos, Maps, Store, Exchange, XT9 works very well and stable. Alien Dalvik is installed but didn't work (not yet). Need additional tweaking.

FP2 is such a sexy piece of Hardware, it will be definitive the next Sailfish Flagship.
I'm sure Fairphone will releace official Sailfish with Aliendalvik, they wait until the Build became ready and support anything (Dual-SIM, OTA-Updates etc.)
They would get a lot of new customers, when they release it with official Sailfish OS.

We see how much people are ready to pay hunderts of $ / EUR to get an Device with official Sailfish. Doesn't matter, if it is a Jolla Tablet, Jolla C or Intex Aqua Fish.
The Jolla 1 in good condition going through eBay for 100-130 EUR!

For me - there is definitiv no way back to Jolla 1 after Fairphone 2. Missing Android support is something importand, but i can live without it atm. (Have a Jolla Tablet, also)