Late spring in New Orleans is the sweet spot. The Mardi Gras crowds have gone home, the humidity hasn't quite hit its peak yet, and you can actually hear the brass bands on Frenchmen Street without elbowing your way through a wall of tourists. Spend your mornings with a chicory coffee and a powdered beignet, and your nights drifting between dark, sweaty jazz clubs where the music doesn't stop until dawn.
A trip like this usually runs about $1800 for the basics. That is a chunk of change to drop all at once, so spreading out the payments can make it much easier to swallow.
That 0% window is a deadline, not free money. If you still have a balance left when those 18 months are up, the remaining amount will get hit with regular interest charges.