I would proceed with extreme care
The language will not be an issue everything else will be
Of Romania 's carriers only Orange & Vodafone offer unlocking chances of it being unlocked ,small
if you need help or access to out of warranty support Apple in UK will not touch it
When you find you have a lemon Romania is hardly accessible
It appears most of iphone scams are internet /eBay related
If you must buy in England and pick it up so at least you can see what you are buying .
Romania .......................you must be joking