I used to use Delta Vacations packages for travel all around the world, until they announced last year that flights booked through DV wouldn't earn full MQDs. Which was a shame because it was very convenient to book flights and hotel in one stop, and the prices were better than booking the same itinerary separately (I always used to compare to be sure). So if you aren't affected by MQDs or any other FF program constraints, packages can definitely be convenient and can save some money.