Just got myself one of these after seeing people mention them in the bst.
Got mine from the vodafone shop for !£100 + £10 credit. Guy at the shop said I would need to pay £20 to get it unlocked but I popped my 3 sim in there and it worked straight away. Seems like a fairly nice little phone. I've noticed the ringer is pretty much useless but apparently there is a firmware update to fix it. Not sure if I'll bother as I think I'll try and seek an ics rom instead. Ignore what's been mentioned on the web about this having nfc as that's only in the U8818 model and vodafone apparently only have the U8815 model.
Just about to flash to g888-unbranded but apparently need to do the vodafone g886 upgrade first to get the speaker sorted. Note: Once you install cwmrecovery, the phone doesnt seem to want to install updates from vodafone anymore. Probably best to upgrade to g886 then install cwm and newer roms.
Edit: The update really sorts it out, I would advise to upgrade through phone menu before upgrading to g888 as I had to manually downgrade to g884 to sort the ringer issue.
Edit: Was really looking forward to using the inbuilt SIP client to connect to my SIP server at home but the client appears to have been removed by huawei
Edit: The email client doesn't seem to work properly with exchange, sure there's a fix, may be as simple as downgrading to previous f/w, will report back when I figure it out.
Edit: Email problem fixed by turning power saving mode off.