I highly recommend utilizing UMP. We called them extremely last minute for my twins 1st year birthday party and their service was amazing from beginning to end. The final cost was extremely competitive, they were responsive from the start and incredibly professional throughout the process. They were extremely proactive about EVERYTHING and really took the reigns when coordinating with my event space (making for a stress free experience). They arrived 2 hours before the event even started and were diligent with the setup. They actually threw in a few extras for us, going the extra mile to make our an event success. And of course, everyone raved about the music.