My nephew is moving into a rented flat just outside Newport Wales, in a few weeks' time and needs to find a way of setting up some broadband. Long-term contracts are out of the question right now. Unfortunately he doesn't yet know whether the property has a landline, so until the technicalities can be sorted out for that, it seems that mobile broadband is his only option. I understand no-one does short-term fibre so that's out as well.
He's a programmer and needs to use a laptop screen-size for his private research work...so relying just on a smart-phone for everything isn't going to be good enough. He also downloads quite a lot of stuff, so data usage is quite high (I don't know what, exactly). Does anyone have any recommendations for a mobile provider, short-term (say, for a couple of months) while alternatives are being set up? I am passing to him an unused TP Link MR6400 router, which I believe is a good one for 4G mobile.
What I've checked out so far indicates that Three Mobile might suit; but I have no experience myself of mobile broadband so others' input would be useful.