As the host:
First, you are in charge. Always. You control the
music, the volume, the tempo, the lighting levels, the activities, the start
and stop times, everything.
When you are planning a special event you only get one
chance to get it right. If things go wrong it usually happens at the
worst possible time.
You want someone that
shows up on time, every time. You want someone who does what they say
they'll do and provides the services that you have contracted for. No
excuses, no problems, just simple delivery.
You want a dj with professional, dependable equipment.
You want a dj that has backup equipment on-site for large events so that in the rare
case something
does fail the party
still goes on.