Thinking of buying

Hi,

I am thinking of buying this phone to use in the UK.
Couple a questions:
Does it support 4G in the UK? I.E 800MHz,900MHz,1800MHz,2100MHz,2600MHz

1. How is the battery life?
2. Is there root available and can bootloader be unlocked?
3. Is there any random problems i.e. delayed notifications, no notifications, random reboots, heat?
4. How is the fingerprint scanner, read few reviews either it stops working or is really slow?
5. How is the GPS in Europe? Is it fast?

:confused:

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