My experience in April is consistent with hockey's. I was in the front of the KLM flight from SIN that landed at DPS in the evening. I paid the $25 and went through immigration with only minor waiting, probably less than 30 minutes from touchdown to I was in the car. While rushing to beat the rest of the people in the plane helped, there were others in the queue already from other flights. My impression is that the last person off the plane still made it through immigration formalities without an unreasonable wait. That is, I don't think people are waiting 2 hours anymore.