I've had mine since saturday morning. Made an impulsive trip to Selfridges. Was going to go on friday but was too hungover.
Hardware is unbelievably good. Software is lacking compared to BB10, but with the ability to use mainstream apps natively.
If you want a supremely good android phone with a keyboard, this is perfect. If you want a BB10 replacement, it is not.
I'm keeping mine because BB10 is effectively dead and I may as well change now rather than more painfully later.
Issues I have with the phone: Hub is a shell of the bb10 version, camera is slow, battery life is worse than Passport (although 6h screen on time is apparently very good for Android?). I miss peeking at notifications, horribly (this will be fixed if they make the hub include Whatsapp)
Positives: Keyboard is good although takes a bit of getting used to. Hardware feels very solid, everything runs very quickly, google now is pretty cool. Camera quality is very good. Everything supports keyboard gestures nicely. The sliding mechanism is delightful. Some android apps are genuinely excellent.