I own a suzuki zeus 1.5 years old. Clocked 12000 kms.
Advantage: low price, good mileage(60km/lt), good quality, safety, battery is good(still no problem with self start), 5 gears, smooth engine and engine sound
Disadvantages: Low body weight, Low pickup, suspension is average
Go for this bike if you need all features in a bike at lower price compared to other 125 cc bikes. Go for full option bike only. Dont buy this bike if you want to race with other bikes. Red colour is better as other colours fade after a period, especially black colour.
The option to buy bike as follows
100cc====hero honda passion, honda cbr110
125cc====suzuki zeus
150cc=honda unicorn