Principle ok, goes well, processing well ...

Function:
I find it very good that you can use the bag without front part, so that the housing retains a certain mechanical protection. To be fast "receptive", then you need no further handles. Unfortunately, the side panels do not reach the top, so that the camera body could still offend. The side panels could have been designed a little higher, then the protection would be even better.
Overall, the TZ10 bag fits like a glove. It has the combination also securely in your hand.
The two side snaps I had replaced with a single bottom, then you could open the bag even lighter and faster with one hand. For the two push buttons you need two hands, but this is doable if you have slung the camera on the included strap. Nevertheless, a would be sufficient and more practical.
Processing:
The lower push button which holds the oaths pocket halves is slightly deformed in my copy, it comes off with quite a bit of force. I fear that the shell might fall off when photographing times. Hopefully not just in the water.
The lower edge of the monitor cutout is slightly oblique. Not interfere with the function looks just kind of poorly finished.

Overall, the bag is useful, also looks quite good, the Funktionaltät could be even better, the processing also.