We moved to Ya two years ago after they made a call to us touting their wares ... they sounded fantastic, in addition they promised us Customer Service in English to make it easier .... so we swtiched .. took ages to connect which I think was partly the fault of Telefonica dragging their heels......during this time and once we were connected Ya were useless in the Customer services department and completely denied having anything available in English and then when we were due to move house messed us around big time and we ended up cancelling.
I have to agree with Xtreme on telefonica - this year we moved back to them and I have to say we have been 100% satisfied, download / upload speed has been brilliant (according to my OH and the way he monitors it!), Customer Service has also been spot on ... I know this isnt what we normally like to say about TF but I can only speak as I find.
sue x