I didn't get a UK adapter either but I have lots of chargers anyway.

The Chinese and Indian roms are official from ZUK and are the same as what the Z2 is shipped with, minus the added apps and with OTA update functionality added back in. You'll need to change the language to English (quick google) and you'll need to install Google Play from the included app store. Chinese rom is on Nougat but still has some Chinese language here and there (not really a problem), Indian rom is still on Marshmallow but with better translations apparently so everything is in English. These are probably the best options if you want to run apps that are picky with custom roms like banking apps. You can flash these by following the video posted in comment #19.

Lineage is the new cyanogenmod so gives a stock android experience, but is fairly new for the Z2 and only Nougat is available.

Mookie has been running on the Z2 longer and has Marshmallow and Nougat (nightlys) available, and is also stock android.

Any of these is a good choice - I've only had a quick go with them all but they all seemed to run well. To flash these you'll need to unlock the bootloader and install TWRP - go to the video in comment #19 and then look at his other videos and he goes through it step by step. The only issue I had was with the ZUK account - everything created OK but when I requested the bootloader, it brought up a login screen and when I logged in the screen flashed and nothing happened. Creating a ZUK account here solved the problem: http://www.zukmobile.cc/buy-zuk-mobile.html

My only issue with Lineage and Mokee is that the option to have the onscreen nav bar seems to have been removed from the developer options (or maybe it was never there, but if you search in the settings for it, it shows a search result but nothing is there?). But it IS there on the ZUK roms if you'd prefer to use on screen buttons instead using the home button for everything - this actually works well but I still kinda miss the on screen buttons.

As always there's no 'best' rom so recommend trying them all and going with the one you like most.

I got this about 4 weeks ago when it was on offer for £150.
It's slightly thicker than most modern android phones, the camera isn't great, it doesn't have an SD slot & the keyboard was freezing a lot after updating. I have since uninstalled all the updates and it's been fine ever since.
it has a lovely sleek robust feel, is really nippy for everyday use, the screen is lovely, battery life lasts the day and will survive the night on standby, USB C with quick charging (quick charge plug required separately), finger print sensor, multi-featured home button works VERY well, oh and massive 64gb storage.
For me, the pro's far outweigh the cons and it's the best value for money phone I've ever bought (I've had quite a few)

For the people that are looking for answers to questions about this phone, do a search and look throb some of the previous posts of this, I'd be surprised if you'll have something that hasn't already been covered! Cracking phone.

It looks quite chunky on the videos on youtube. Any owners out there? What's your opinion?

budget phone with a below average camera!

The phone looks to be good. But i would suggest not to buy from banggood as there is no proper response incase there is any problem with the phone.

Great phone (I have had the black one since November). It comes with an international ROM that will never be updated so you will have to flash the ROM to get it to receive OTA updates. Seems quite easy to flash a huge number of other ROMs out there. Remember though if this phone goes wrong it will be pain to get fixed or replaced. Flashing the phone may also invalidate the warranty! I have flashed the Indian ROM (English and Indian language) which has updated to the latest Marshmallow and Nougat may be available later this year. You can flash the Chinese ROM and this is already at Nougat. If you are a bit tech savvy then this could be the phone for you. If not I would suggest other options such as a UK bought phone.

Great phone, been using mine with stable Marshmallow ROM and it flies. Best not to buy if you are not tech savvy. Camera is pretty average but the performance is amazing, and I don't think a good camera is worth the extra £200 minima outlay for one.

if only there was a 5.5 inch version

zuk edge is expensive

Decent phone, it's a bit think, but the extra battery life is the advantage you gain.

It's fast, solid hardware, and very stable.
If you are looking for a high spec 5" mobile at a bargain price, this is the one to get.


Edit: just to add, using this on Three mobile, and reception is great. Band 20 missing has been a non-issue so far