It works fairly well at first but I quickly realized some issues. The sound on any song, video, movie skips frequently. I looked up how to fix it and saw that I had to reset the PRAM. Nothing has changed even after I reset it several times. Also when I try to use my audio interface in Logic Pro X it works for a while and then tells me that the sample rate cannot be synced. I looked up how to fix that and it only fixes it for a short time and eventually has to be done again. Also the usb ports have trouble recognizing when my interface is plugged in. I have had this for less than a month and have experienced many more problems than I imagined. A new one would have been much better.