We just got married April 16, 2011 @ Iberostar Del Mar and Ivan with DJ Doremixx was our DJ.  You cannot go wrong with him!  He was very helpful throughout our planning and always responded to our emails in a timely fashion.  He even sent us a full playlist with 1000s of songs and an example of how the music would be played during the reception.  He came to our resort the day before our wedding to go over final details and was very organized.  I can honestly say music was something I didn't have to stress about b/c Ivan was on top of everything.  The night of our reception he did an amazing job and kept the party going all night long.  So many people commented on what a great job he did.  The balloons and masks that he brought added to all the fun!  Def hire him!!!