To Panasonic 45-175 users: feedback from your experience please

Tatouzou wrote:

To those who have used this lens in real life:

I am looking for a small and light travel zoom in the 50-200 range.

The Panasonic lightweight small and compact 45-175 specs fits my requirements, but there is very little feedback from actual users around the web and only a few old reviews.

My main questions :

• Is the sensor shock still an issue on GX8 or G7, or does the auto-e-shutter feature solve it?
• How does it AF on GM5, G7, GX8?
• How is the OIS performance on GM5, G7, GX8
• Does it feel tough and well built ?

+ 2 more questions for those who actually have used the lenses :

• How does it compare with the 14-140 Mk2 across their common range? I have the 14-140 Mk2, I love its convenience. But, IMO, though it is better than it should be as a superzoom, at the long end, it is rather soft and lacks contrast between 80 and 140.
• How does it compare with the 35-100 f4-5.6 across their common range ? I have the 35-100 and, IMO it is rather sharp and contrasty.

I have discarded the 45-150 and the 45-200: 150 is too little extra range above 140 I can get with my 14-140, and the 45-200, though I appreciate it being splash and dust proof, is bigger and twice the weight of the 45-175.

Dont forget my purpose is a travel tele zoom and my main zoom will be the 12-60. Also ,  I am thrilled by the powerzoom feature to test it for video and remote control, though I am mostly a still shooter.