Here's a tip I used to get it perfectly aligned.
If you have a old credit card lying around or bits of plastic cut 2 strips the length of the speaker. Make sure the strips fit through the screen protector and fit tightly in the speaker holes. ...
Any one with errors try the Sony cable that came with the phone. Everytime I flash using a 3rd party cable I always get a error message.
Amazon UK has it for pre-order now aswell at £649. They also have a release date of 1st June. Doesn't have chrome version so it might be a carrier exclusive here in the UK.
Clove in the UK has the phone for pre-order at £645. Aswell as some accessories :).
I'm using the Spigen Stealth and It doesn't leave any sticky residue after removal.