I am using it in Bangalore and travel to office thru a mix of city roads and Outer Ring Road (as good as highway). I am getting a magnificent mileage of 52.7 kms/liter.
I also owned the old Unicorn (149cc). Comparing the two the old one does seem more silent and refined as the new engine does have some grunt, but after a while you will realize this is a healthy grunt and indeed a good engine.
Tubeless tyres and digital cockpit does add value.
But being lighter than its older sibling, it does lag little on the stability but mostly in cities we do not drive over 60 kms/hr so its fine.
My older Unicorn was a no non-sense maintenance free bike ... so is this the latest and more fashionable sibling :)