I mostly use mine to fit a lot of music on. I don't like MP3s so I still buy CDs and rip them using Apple Losless which takes up quite a bit of space. I usually try to leave about 6-10 GBs free for games I might want or for the countless pics and videos I take of my kids. I tried using Match at one point so I could have all of my music (so I wouldn't have to pay for the 128 GB phone) and the quality difference was so bad I switched back immediately. I'll never go back to anything else!