Awful customer service, the people in the store ignore you (even if you've been waiting for half an hour!), then often they can't help you anyway and tell you to call the service desk, it's so hard to top up, then they sell you products that such as the Big Value Deal (No value deal!) where 'you will get international allowance of 500MB, 100 minutes and 100 texts in our Europe zone' then it doesn't work even after they've sent you a welcome text telling you about your allowance and you call them they say they can't provide that service because the UK government made it ILLEGAL!! Well, if it's illegal don't go advertising services and letting your customers get stranded in new countries in the middle of the night with no access to telecommunications. My friend used 3 for a trip around Europe and it was perfect.