Ok, here are my first Impressions from Sailfish (Alpha state) on Pro1:
The Porting-Team did a great job so far!!! Anyway it's still Alpha and you can feel that still on some missing features and some rough edges. I always used official Sailfish devices in the past, so this is my first community port.
Boot time is the first thing which is something which made me somewhat nervous on the install process. The first boot takes ages but also the following ones take more than 3 times longer than that on my XperiaX.
SIM Card is detected and I can make phone calls. But I can't access mobile data, I get the mesage SIM is inactive. (Mobile data settings are the same than in my XperiaX). Connection over WIfi is possible and works fine.
After installation I set up my Jolla account and entered Jolla store. I could install the Jolla standard apps, and some further apps are shown, but not very many. Doing pkcon refresh shows up "Failed to obtain authentication"
Keyboard works, but the mapping is wrong on my qwertz device. I have offered my help on Github for that.
Onscreen keyboard sometimes doesn't show up. After opening the hardware keyboard and closing it, it shows up again.
The sensors quite often do not work after boot. On next boot these problems are usually gone. Relevant here are nearly all sensors including multitouch. When they work, they work. So no erratic failures. But after a boot the chance is high that they are not working.
Camera works including the hardware button for it.
GPS doesn't work. (Already on Github as a known bug)
The same applies to FM Radio
Bluetooth is working. I connected to my Sony SRS-X11 without problems, did no further tests.
Sound is working through Speakers, when I connect my headphones Sailfish crashes immediately.
Graphics are fluid, anyway I have the feeling, that not all cores are fully used.
Adjusting display brightness works, but the slider is reacting somewhat strange. I would call it nervous 😉
Double tap to wake phone works, but not always. Found no pattern yet, maybe it's me: I often grab the phone in a way that on the edges my fingers touching the screen. (Bigger bezels would have been better, even so it doesn't look that nice. I already made that experience on Android)
Can't say to much about battery yet. Doesn't look to bad at the moment, but I had the impression on Android Battery life was a little bit better. On the other hand, I haven't tested that intensively on Android. I simply don't like Android. The first thing I wanted to test there, was the keyboard. So I opened the notes app and was immediately asked for my google account. For taking notes? Really? I have no Google account and I definitely won't have in future.
That's my first impressions. If these sound bad, you got me wrong. All in all Sailfish feels great on this device, even so it's still an alpha. I hope the team makes rapid progress, so I can switch to the Pro1 as my main device.
To the developers:
I am no coder. But I'm willing to help in any way I can. Testing, simple works like translations or whatever and of course with sponsoring some beers. Just let me know!
Keep on your great work!