I have Royal Enfield clasic 350.
Royal Enfield classic 350 model is one of the best bike in this range
Comfort:
It is very comfortable to ride. One of the best thing is we dont get back pain while riding this. Smoothness is one of key factor. I would rate it 10 on 10 on smoothness.
Mileage:
It gives a milage of 40km/L
Not so good but not so bad too.
In this range best riding bike.
7/10 on milage.
Design:
Typical classic design liked by all.
Royal designs for royal riders. Superb bike
Road grip is very good and superb riding experience.