Bring the questions!!
On this particular model, the camera is integrated. $500 gets you the drone 1080p video and 12 mp stills camera.
Time lapse is based on the app. The official app that comes with it does not do time lapse, however the third party Litchi app does for an extra $25.
The drone syncs with an iOS or Android device. You get FPV with that device. You can also buy an FPV headset if you want. This allows you to control the camera view from the VR headset and the drive from the controller.
The DJI drones are made to be flown easily. The point is to give you a good experience. If you fly responsibly, your device will give you many years of use. There are accidents and it is possible for the drone to have an issue and "fly away". However, with few exceptions most fly aways can be avoided through proper education and practice.
The "extras" I would recommend are saving and buying extra batteries. DO NOT TRY AND SAVE MONEY AND BUY THEM FROM AN UNKNOWN SELLER. These are high capacity Lithium batteries and have been known to catch fire when misused, damaged or not properly assembled. 25 minutes sounds like a lot of time until you are actually out there flying. If it's cold, battery life suffers, if you are piloting in high winds, battery life suffers, if you have a long distance from launch location to recording location, you'll want those extra batteries. I have 2 and I want 2 more, minimum.
A big issue is charging in the field. Juice packs are not going to cut it and it can take up to 2 hours to charge a battery.
I started out with smaller drones, like $50 ones. I crashed those a lot, but they do not have any where near the automation the DJI has.
Went with the DJI because of availability and reputation. They are sold with lots of support.
I'm close to being ready to take my airman's certification test, hopefully within the next few weeks.