Hi I have spotify premium so I can save play lists offline on my laptop and my iphone. The reason I ask about reliability is that I am getting married and have done the playlist on spotify. obviously I need it to work or it would be a disatster. have people used the offline function much and have there been any problems? I know spotify had a network problem a little while ago so it could not be used for a day and I am feeling a bit paranoid about relying on it for my wedding. would people trust it? any opinions would be great.