Very good product with absloutely magnificent craftsmanship. Camera is just superb with RAW support. Display and audio quality is also fantastic. Running latest android nougat 7.1.1.
One important thing, for those who are worried about VoLTE support, I would like to share my experience. When I got this device, it didn't have volte support. But on the 5th day of my purchase on 14.09.17 I got an system update. With that I got the VoLTE supoort.
Truly this is the best android mobile you can hav...

Buy it because its actually better then the others in the price range.
3 best android options I had in 20k-30k were OnePlus , Moto Z series and my old trustworthy Asus.
One Plus and Moto Z are plagued by weak battery and bad speaker. Camera on asus is much better then moto and better then One plus if you know to use manual mode.
Also the after sales service of One Plus is pathetic, better shoot urself if you break the screen.

Battery Life: Getting about 7-9 hrs of screen on time, I am satis...

1. Good battery backup
2. Good camera quality
3. Good music hearing experience
4. Good display.
What else we want from a smartphone?

Little more update, after using 1 Week:
1.Battery drains faster than expected.
2. My secondary phone is Lenovo P2. It gives me average 3 Days back-up, I have recovered all my apps from P2 at the time of first boot of Zoos S. So, both of my phones have same apps. Think Zoom S UI takes the Juice from Battery.
3. Average Memory used 2.7GB in Zoos S, where P2 with ...

Okay. Bettery is excellent,but not a dual stand sim...and not available to transparent back cover.

even IAM also a certified buyer I don't want to sign in for that to prove
this is best in class mobile with awesome camera
Asus have done many things to camera
I got 2 upodates VOLTE is working great jio sim support well battery is just awesome
IAM a heavy user for me it stands one and half day
then I 1.8gb of ram free that was Soo great
u have awesome zoom in camera ois is available

I will post sample photos I have took from this mobile

I love photography....

Best Mobile I came across, Got volte update too for jio users. Battery is insane. Camera is great. Just go for it guys

awesome camera quality.....

Really awesome mobile. Good camera. Good battery back up. Good gaming performance. But i noticed some scratches on rear camera.

Very nice mobile under 18000. Choose this mobile with out hesitation. Nice job Asus. Every thing will excellent. Superb camera, massive battery. But ram management is need improvement. Overall great buy.

AWESOME PHONE..At first it was not volte enabled.But after some time got 2 updates of 980mb and 650mb...now volte is enabled and working awesome..Battery is great and screen is awesome..In youtube 1080p videos are treat to the eyes.Camera is super awesome..Portrait mode pics are really good(Dslr type blur).I was really looking for such a phone for a long time.And this is my 3rd Asus phone.:)