Engine has reasonable power and pickup but little lower than similar bikes of Hero and Honda. But the tradeoff is its awesome mileage.
Fuel Economy: I was able to extract 88 kmpl maximum and currently getting around 81 kmpl in city riding that includes heavy traffic.
Gearbox: Its smooth. No false nutrals unless the engine oil goes dirt black. Grar ratio seems optimal for the power of the bike.have done numerous long rides on the bike. Not a single time there was breakdown. Even long drives of 100 km at a stretch does not figigue engine provided you drive sub 60 kmph speeds(thats what the bike is designed for).
For City driving, handling is great. Very easy to drive thgourh traffic. Engine starts the first kick everytime.