I returned my 950XL yesterday and switched back to L1520.
And feel very comfortable.
Had it for 4 days.
950XL unlocked, dual SIM.
Below is list of problems what I got:
1. Charging process warms phone up to very high temperature. Doesn't matter what type of charging- wired or wireless.
2. Notification can be assigned only to global configuration: one ringtone for all email accounts on the phone, one for phone ring.
3. Unique Microsoft future "read SMS aloud thru Bluetooth" is now integrated in Cortana. For Cortana to work, all WP services must be enabled (location, microphone,....etc) and it drains battery in few hours.
4. Microsoft implemented Bluetooth MAP protocol , but didn't give option to turn it off. It creates conflicts between car's SMS modules and Cortana. As a result, driver has to look at the dashboard screen to read SMS messages.
5. No way to restore backup from previous Lumia models. Only fresh install!
6. Speaker installed on the back side of the phone and if you caring phone in the belt holster, holster side covers speaker. And it is not loud by it self.
I'm not a game person. I'm not using camera very often, but camera quality is VERY HIGH!
All listed miscellanies things making my life with Windows phone 950XL very difficult and I decided to return phone and stack for now with my L1520 with W8.1.
I'll keep my eye on the L950XL improvement process and may be one day get this phone again.
:wink: