. Most importantly are the quality of the files it can produce.
One thing about its pop-up flash - mine doesn't always come on initially when activated. I think it's that the electrical connections begin to loosen. I close it and pop it up a few times until I see the little flash symbol show up on the LCD
The images are remarkably good. Even pictures for eBay sales that I used to take with a Canon S90 (and was impressed by) are now done on the Digilux because they look so much better. Leica got it right. It's a good walkabout camera when out with friends so need to frame the picture quickly and shoot. I use an M9 when out taking pictures by myself:a much more deliberate process and no zooms.
The flash seems to work now.