We stayed at The Marriott Courtyard on Palm Pkwy for our first WDW trip. While the hotel was nice, and I was able to get a great rate with Ent. Book, any off site shuttle service is not the best. And they(The Courtyard) had better then usual shuttle service.
There seems to be varying quality of shuttles- ranging to minimal pickups, to more pick ups, depending on the hotel. The Marriott had more pick ups then many, but still..not as convienent as staying on site, with WDW busses running every 20 min.
The off site shuttles are on a sched, there may be 2 or 3 departing in the morning, then starting at 5pm(ish) a few returning to hotel in the evening. Not always at convienent times, you may have to miss the fireworks, or evening show.
And the drop off & pick up are in a further parking lot then the WDW busses.
You just wait in the middle of a parking lot by a space number for your bus.
We decided after that, we'd stay on site for future trips. So much better.
I would recommend that she look into one of the value resorts to save some money.