I have been using Bajaj discover 150 S since the last 6 months and rides approx 50 km daily. I was aYezdi CL II user from 1986 to 2004, before rethinking of a two wheeler again. Of the models available in end 2014, Discover 150 S looked most attractive in terms of style, value for money and features.
Tmorpheushumanugh inmajeechaally I was a bit sceptical, my worries were misplaced once I started using the bike. It feels solid on the road, good handling and mileage(62 km @65km/hr). I even made a few trips of+400 km in a day. Very happy with the performance. Indeed Bajaj has Re-discovered the DISCOVERY model.
I agree with the previous comment - 50 to 60 km/hr you can feel the engine vibrations which vanishes below and above the range.