I didnt get my license yet but I'm closer. I will have it my next month though. I'm on Jepp lesson 15 right now. I plan to go through CFI and maybe MEI and double I, instruct for a while and go to real college on the side for a while untill I can get a four year and then try to get a cooler job.
I still have my old Jepp syllabus: #15 is listed there as "Dual-cross-country". If I remember correctly, the CFI covered just about everything on the list, much of it verbally rather than through demonstration. But if you're wondering, expect a lot of emphasis on pilotage, diversions and lost procedure, and unfamiliar and controlled airport procedures. And you will probably discover why I poo-poo use of the ILS for beginners: don't expect to have the luxury of a glideslope and huge runway at airports you'll be visiting on the XC rides. Just entering the pattern properly can be very challenging at some field you've never seen before.
The sooner you show you've got all that stuff wired, the sooner you'll get to the check ride.
also, expect to really enjoy it, despite all the work. As you work towards that first solo XC, it's just as exciting as anticipating that first solo flight.
Good luck!!