We sailed on the NCL Pearl out of Miami 1/21-1/28.
We arrived at Miami International via US Airways and taxied to the Hyatt downtown a day earlier. No problems. We used Priceline.com for the reservation and got a good room for $125. But, the hotel is next to a major hi-way to the east and the traffic was loud all night.
Embarked on the ship quickly and with no problems. The entire process took about 20 minutes. The crew has that down very efficiently.