To start with it’s a great bike for long rides with milage of 32-36 kmpl. There are some issues like after the speed of 65-70 this bikes handle vibrate to an extent and it might be bit uncomfortable. to overcome this issue you can attach a handle bar between the handle and to some extent it will help.
The weight of bike is around 180 kg so its a muscle bike with nice grip on road but for busy street it might be an issue as managing the bike on busy streets by your legs might hurt a bit.
This bike comes with 350cc, 500cc, continental GT which is 535 and a recent launch model Himalayan 411 cc engine where 500cc bike’s average would be 28-30 kmpl, GT will give 22-25 and Himalayan will give mileage of 19-22 kmpl.
The maintenance cost for the enfield is around 2500-3000.
Bike parts are easy available.