Powerful on straight roads not on hilly roads. Review on Yamaha SZ R

Yamaha szr is a nice bike although in its segment of mid range. starting with mileage, mileage is satisfactory on straight roads in highway you can get upto 50 kms per litre but if we speak of hilly roads then it gives around 35 km per litre n hilly roads. comfort is good as seat is long and wide. two people can sit with comfort on it. reliability I would say 6 out of 10 marks if I have to give ratings because yamazha szr is good for straight roads but when ascending on a hilly road the yamaha szr doesnt give you adequate power to climb and often engine stops in mid while changing gears which comes an hassle. e problem I feel lies with with carburator as I have got it checked myself and a lot of people have told me the same problem about missing and engine getting shut down whilst changing gears. power while climbing is not enough and often engine stops while climbing with not enough power in normal climb even. road grip I would only give 4 out of 10 rating as road grip is really worst in yamaha szr and rear tyre often slips while making a tight turn or while going through dirt roads. for appeal I would say its a very good lookin bike and gives a nice feel while riding. conclusion its a good bike but only for straight roads and not made for climbing on hilly roads.