Bought one of these a couple of weeks ago .... Why ? .... Always liked to have a P&S along with a DSLR.
Had a FZ20 & a TZ15 for quite a while & never a problem with either of them, I was drawn to the Lumix because of the Leica lens.
Both cameras were landed down the family chain when update time came around.
The TZ 100 is very similar to the TZ 15 (sold in other parts of the world under a different model #).
The program selector wheel has been beefed up somewhat & of course it has GPS & very accurate it is too.
Any failure in picture quality is always mine, you could say I'm a very satisfied