HELP! I did a search on here and not much came up, has anyone heard of...

Ej the DJ? FH is doing side work for the owner of the company and the guy owns a bunch of other wedding related businesses. He told FH think barter when coming up with the price he was going to charge him. Well he is going to do the RH lighting, which is awesome, but he is suggesting that we use his DJ also, EJ the DJ. We already booked with LI Sound and left a deposit, which I don't think we can get back, but then again if we get a DJ for free its not a big deal. I just don't know if I'm comfortable with that since I haven't heard much about him and if the DJ sux the party sux! Help, what would you do?