1. The camera is all in one. No interchangeable lens to lose, no entry of dust or contaminants to the sensor. No cleaning. It is small and neat. It attracts little attention*
2. The lens is a Leica lens. Superb resolution and contrast. Aspherical elements so there is very little chromatic aberration - that is the killer defect of some other lenses for me and puts me off them. This one has no CA that I can see.
4. The lens will open up to to f:1.7 or f:2.8. That's low-light enough for most tourist shots w/out flash. It will stop down to f:16 and there's where the DOF becomes wonderful!
5. The sensor is 4/3" MOS - that's the same a Micro 4/3 size without the interchangeable lens to worry about. It cuts the world into 16.84 megapixels so there is plenty of resolution for A3+ prints....and I'd even test it out to A2...
6. It has an image stabiliser system - as it is small and light it needs something to keep it on track besides my shakey ol' hands.
8. In case I want a flash there's a standard hot shoe and I can put a TTL flash on there.
9. 4K video recording for moving pictures. I have no idea what this is. I don't watch TV. I look at still pictures.
10. 4K video recording from which you can extract still pictures. Aha! Now I see where I could use this. I shoot a burst of frames of a Galapagos turtle streaking by and select the best one that is in focus. Interesting.
11. RAW/ JPEG and it's covered by my Adobe editing programs right now.
13. Direct control of aperture and shutter speed on traditional dials, with the option of a fast click off into aperture priority or shutter priority. This, camera makers, is the way it should be...always...
15. WiFi. I don't use it often, but when I am travelling I do like to fire some images back into the tablet for blogging. If I can do it without card shuffling and extra adapters, all the better.
* I attract enough attention in other ways. That steam-powered destroyer siren was a darned good idea.
See the Panasonic LX 100 on the Camera Electronic website